This article is transferred from "Xin Zhixun"

On September 19th this year, Huawei officially released the annual flagship Mate 30 and Mate 30 Pro in Munich, Germany, and also announced the 5G version of Mate 30 series equipped with Kirin 990 5G chip. However, it was not until November 1st, more than a month after the launch of the 4G version of Mate30 series, that the 5G version of Huawei Mate 30 series, which was priced at 4999 yuan, was finally put on sale, and the sales in Huawei’s official mall exceeded 700 million in seven minutes.

Recently, TechInsights, a foreign professional analysis organization, conducted an in-depth disassembly analysis of Mate30 Pro 5G version (version of 8GB RAM+256GB ROM), which not only analyzed the main components on the motherboard of Mate30 Pro 5G version, but also included the disassembly analysis of Kirin 990 5G processor.

Let’s take a look at it:

According to TechInsights’ analysis of the motherboard of Mate30 Pro 5G,

Look at the front of the motherboard first. As indicated in the above figure, the components from left to right are:

Haisi Hi6421 power management IC

Haisi Hi6422 power management IC

Haisi Hi6422 power management IC

Haisi Hi6422 power management IC

Nxp PN80T secure NFC module

STMicroelectronics (stmicroelectronics) BWL68 Wireless Charging Receiver IC

Halo Micro (Guangdong Xidi Microelectronics) HL1506 Battery Management IC

Look at the back of the motherboard first. As indicated in the above figure, the components from left to right are:

Halo Micro (Guangdong Xidi Microelectronics) HL1506 Battery Management IC

Haisi Hi6405 audio codec

STMP03 (unknown)

Silicon Mitus SM3010 power management IC (possible)

Cirrus Logic CS35L36A audio amplifier

Lianfa technology MT6303 envelope tracker IC

Haisi Hi656211 power management IC

Haisi Hi6H11 LNA/RF switch

Murata front-end module

Haisi Hi6D22 front-end module

HiSilicon Kirin 990 5G SoC and SK Hynix H9HKNNNFBMAU-DRNEH 8GB Mobile LPDDR4X SDRAM with PoP package.

Samsung KLUEG8UHDB-C2D1 256GB UFS storage

Texas Instruments TS5MP646 MIPI switch

Texas Instruments TS5MP646 MIPI switch

Haisi Hi1103 Wi-Fi/BT/GNSS wireless integrated IC

Haisi Hi6H12 LNA/RF switch

Haisi Hi6H12 LNA/RF switch

Cirrus Logic CS35L36A audio amplifier

Haisi Hi6D03 MB/HB power amplifier module

After introducing the motherboard, let’s take a look at another sub-version:

As indicated in the above figure, from left to right are:

Haisi Hi6365 RF transceiver

Unknown 429 power amplifier (possible)

Haisi Hi6H12 LNA/RF switch

Qualcomm QDM2305 front-end module

Haisi Hi6H11 LNA/RF switch

Haisi Hi6H12 LNA/RF switch

Haisi Hi6D05 Power Amplifier Module

Murata front-end module

Unknown 429 power amplifier (possible)

Let’s take a look at the internal situation of Kirin 990 5G:

As mentioned before, Kirin 990 5G integrated Huawei’s Ba Long 5005G baseband chip into the SoC for the first time, which made it the world’s first commercial 5G SoC, and also supported the SA/NSA dual-mode and backwards compatibility 4G/3G/2G network. In contrast, at present, other commercial 5G mobile phones are basically implemented in the form of processor plug-in 5G baseband, which will further increase the cost and power consumption.

Kirin 990 5G adopts PoP package, and SK Hynix H9HKNNNFBMAU-DRNEH 8GB mobile LPDDR4X SDRAM is stacked on top of it, which is the same as what we saw in Huawei Mate 20 X(5G) before.

The chip size of Kirin 990 5G SoC is 10.68mm x 10.61mm = 113.31mm 2. In contrast, the chip size of Mate 20 X(5G) and Kirin 9804G AP+modems is 8.25mm x 9.16mm = 75.57mm2, while the chip size of Balong 5000, an independent 5G modem, is 9.82mm x 8.74mm = 85.83mm2. Kirin 980 4G AP/modem chip size+5G Balong modem chip size = 161.4mm2 The die size of Kirin 990 5G SoC is 113.31mm2, which is much smaller than the previous two-component solution, which may be benefited from TSMC’s latest 7nm FinFET EUV technology.

Comparison of chip sizes between Kirin 980 (left) and Kirin 990 5G (right)

Summary: From the main 36 components in Huawei Mate 30 Pro 5G version listed above, 18 of them are from Huawei HiSilicon’s self-developed chips, accounting for half of the total. Moreover, we can see that Huawei also introduced the battery management chip of Guangdong Xidi Microelectronics, a domestic chip manufacturer, and the envelope tracking chip of MediaTek in flagship machine for the first time. In addition, we can also see that the proportion of components from Japan, South Korea and Europe is also increasing. The front-end module of Murata in Japan, the silicon micro-power management IC in South Korea and the wireless charging chip of Legally Semiconductor in Europe all seem to enter Huawei’s flagship models for the first time.

Surprisingly, among the core components of Huawei Mate 30 Pro 5G version, there are still American devices, such as chips from Texas Instruments, and the RF front-end module of Qualcomm and the audio amplifier of Lingyunluo of the United States have appeared for the first time. At present, the United States has not lifted the ban on Huawei, and these American devices should have been stocked by Huawei before. However, compared with the previous internal main components of Mate 20 X 5G, the proportion of components from the United States is indeed further reduced. For example, instead of Qorvo and Skyworks front-end modules, there are more HiSilicon RF front-end devices and Murata front-end modules, and Meguiar’s DRAM has also been replaced by SKHynix’s.

　　Xinhua News Agency "China Net" reporter Zhu Guoliang Lu Huadong Zhang Zhanpeng

　　2017 Spring Festival travel rush officially kicked off on 13th. There is such a group of people who are not afraid of hardship, filth and loneliness. In their ordinary posts, they silently contribute their own strength to Spring Festival travel rush.

　　Race against time "Water Dragon King"

　　His name is Wan Dongzhou, and he is 59 years old. He is an ordinary Sheung Shui worker in the Sheung Shui Group of Nanjing Railway Station passenger workshop. Since joining the Sheung Shui Group in 1986, he has worn out a pair of liberation shoes on average in two months, and is affectionately called the "water dragon king" who can run best.

　　"K1557 arrives at the station and is ready to go to the water." At 14: 23, an "order" to add water to the train came from the intercom. Upon hearing the order, Create immediately picked up gloves and greeted the other three workers to "run" to K1557.

　　Although the Sheung Shui team is only 500 meters away from where the train stops, Create and his team still walk very fast. "K1557 only stops for 13 minutes. Except for the time spent on walking, pulling the water pipe, screwing the water tank and opening the gate, there is not much time left for us to add water. We must race against time." Wan Dongzhou said.

　　Starting from the first carriage, Lao Wanyi walked all the way to insert the hose into the water injection port of the train, skillfully opened the gate and flushed the hose, and then turned back to pull out the hose after the water was filled. In less than 10 minutes, Create had filled all the water in four carriages.

　　During his stay in Spring Festival travel rush, Create and his colleagues each had to add water to 50 trains and nearly 200 carriages every day, running back and forth for more than 40 kilometers. At the busiest time, trains came one after another, and Create didn’t even have time to stop for a drink.

　　"On the track during the night shift in winter ‘ Through flow ’ Very big, when adding water, the ear hurts like a knife. " Create said that 40% of the people in their Sheung Shui group had frostbite in their ears. If it is raining and snowing, and the road is frozen, it is also common to "wrestle" at night.

　　This year, Spring Festival travel rush is the last Spring Festival travel rush before Create retires, and he will continue to "run" for thousands of tourists in Qian Qian in this Spring Festival travel rush.

　　A garbage porter who is not afraid of dirty and smelly

　　At 14: 50, "Didi Didi", an electric car horn sounded from a small bungalow opposite the water adding group at Nanjing Station. The driver of the electric car is Li Mingde, the guide of the sanitary class in the equipment workshop of Nanjing Railway Station. He is telling his "old partner" Wu Lailin to collect garbage together with his "horn code".

　　Hearing the horn, Wu Lailin trotted all the way, quickly got on Li Mingde’s electric car and began to collect garbage. After crossing a section of track in front of the yard, the electric car slowly drove onto the No.1 platform where the train stopped, while Wu Lailin kept getting off the bus and put the garbage bags that had just been dropped from the train into the electric car. Sometimes there were many garbage bags, and the driver Li Mingde would come down to help Lao Wu carry the garbage together.

　　Because there are many people on the platform, in the process of collecting garbage, the battery car must drive slowly, and it has to stop when there are people in front, and then it can continue to move after the passengers pass. In this way, two people got off the train 30 times, and it took nearly 40 minutes to clean up the garbage of three trains.

　　After the electric car returned to the garbage transfer station with "full load", Wu Lailin’s work did not end. He also has to unload the garbage bags from the car one by one. In this process, in addition to enduring the pungent stench, the garbage water flowing out of those garbage bags that are not tied tightly or punctured will be "poured" on the body from time to time.

　　During Spring Festival travel rush, the trains passing Nanjing Station left an average of 24 tons of garbage every day. At the peak, cleaning staff like Lao Wu ran back and forth with the battery car for more than 30 times every day, loading and unloading more than 400 garbage bags. "It doesn’t matter if we are dirty and tired, as long as the passengers’ carriages are clean." Lao Wu said.

　　[Processing time]

　　From 0: 00 on November 10, 2019

　　[Business scope]

　　Carry-in/out service

　　【 Conditions for Handling 】

　　(1) To apply for number portability to transfer the service number to the network, the following conditions shall be met at the same time:

　　1. The original telecom service operator (hereinafter referred to as the "carrier") has registered personal real identity information to access the network (hereinafter referred to as "real name access").

　　Among them, the valid certificates of personal real-name network access include resident ID card, temporary resident ID card, household register, Hong Kong and Macao residents’ travel permits to and from the Mainland, Hong Kong and Macao residents’ residence permits, mainland travel permit for taiwan residents and Taiwan Province residents’ residence permits, foreign citizens’ passports, foreigners’ permanent residence ID cards and other valid identity documents stipulated by laws, administrative regulations and the state.

　　At this stage, government and enterprise customers with unit certificates accessing the network should transfer the number to the name of a natural person, and then apply for carrying the number to the network to carry out the service;

　　2. It is in normal use (non-loss reporting, shutdown, etc.);

　　3. Settle the paid telecom charges with the carrier. If there are any unpaid telecom charges (such as international roaming charges, etc.), the time and method of payment have been agreed with the carrier;

　　4. There is no agreement with the carrier on the online time limit, or the online time limit has been lifted;

　　5. It has been 120 days since the last port number transfer (natural day).

　　(2) The numbers that do not provide port number transfer service at this stage include:

　　1. Satellite mobile service number: the network number is 1349, 174 and other numbers;

　　2. Mobile communication resale number: the network number is 170, 171, 162, 165, 167 and other numbers;

　　3. Internet of Things numbers: Internet of Things private network numbers (such as paragraphs 146, 148, 149, 140-144, 1064, etc.) and other general public mobile communication network numbers used for Internet of Things applications;

　　4. Other circumstances that do not meet the requirements of national policies.

　　【 Handling materials 】

　　(a) to bring out the handling materials

　　None.

　　(2) Bring in the handling materials.

　　Users shall provide the following materials when handling the port number transfer service in China Unicom:

　　1. The valid certificate of the number user registered in the carrier (valid certificate for accessing the network with the same personal real name);

　　2. Effectively carry out the authorization code;

　　3. The mobile phone card corresponding to the number of the application for carrying out the service.

　　At this stage, in principle, we don’t provide the carrying-in service entrusted by others.

　　【 Process 】

　　(1) Carry-out process

　　To handle the number portability service, you must first check with the portability party whether the number meets the portability conditions. Users who meet the portability conditions apply to the portability party to obtain the portability authorization code, and apply for portability in the business hall of the portability party. After the completion of the portability, the portability party will provide users with a new mobile phone card.

　　The specific process is as follows:

　　1. Inquire whether it meets the transfer conditions.

　　Users passEdit the short message "CXXZ# name # ID number" and send it to China Unicom official customer service short message platform 10010.Inquire whether the number meets the portability conditions, and 10010 timely feedback the user’s query results.

　　For those who meet the requirements, if there are other services affected after port number transfer, the users will be informed of the affected services at the same time as the query results, and the contents will be true and accurate.

　　For those who do not meet the requirements, users will be clearly informed of the reasons for not meeting the requirements, the services affected after the port number transfer and the consultation channels at one time, and will be provided with consultation to meet the requirements through customer service calls and other means.

　　If there is a restriction agreement, you can apply for lifting the restriction:

　　If there is an agreement with the carrier to stipulate the time limit in the network and there are businesses affected by the port number transfer, the user can apply for lifting the port limit.

　　For those who can’t lift the restrictions online, China Unicom provides users with the service of lifting the restrictions in all its own business halls where the number belongs; If there is no business hall with its own entity in the county area, at least one cooperative business hall will be ensured to provide the service of lifting restrictions. Users can check the list of specific business halls through the online business halls of China Unicom provinces (autonomous regions and municipalities directly under the Central Government) or the 10010 customer service hotline.

　　China Unicom will allow users to transfer their numbers to the network within 24 hours when they apply for the cancellation of the online time limit and meet the cancellation conditions; For those businesses affected by port number transfer, China Unicom will allow users to port number transfer immediately after users apply for lifting the service of carrying out restrictions.

　　2. Obtain the authorization code

　　Users can useEdit the short message "SQXZ# name # ID number" and send it to China Unicom official customer service short message platform 10010.Apply to bring out the authorization code, and 10010 timely feedback the user’s application result.

　　For those services that meet the requirements, such as those affected after the network transfer without port number, the user will be provided with the authorization code immediately, and the risk notification should be true, accurate and objective; If there is any business that is affected after the port number is transferred to the network, the user will be informed of the relevant impact and solutions in time, and the authorization code will be provided for him after confirmation by the user.

　　The validity period of carrying out the authorization code is1 hour, you can apply again after the failure; During the validity period of the authorization code, users can only handle payment, recharge, loss reporting, cancellation, card replacement and password reset.

　　3. Carry in

　　After obtaining the authorization code, bring my valid ID card and go to the online store of the operator to apply for a new card. The salesperson of the importing party handles the import application and opens a new card for the user in the system.

　　(2) Carry-in process

　　When handling the network portability service, users must first check with the portability party whether the number meets the portability conditions. If the portability conditions are met, the user shall apply to the portability party for the portability authorization code, and go to China Unicom for portability. After the portability, China Unicom will provide the user with a new mobile phone card.

　　China Unicom, as the importing party, can provide importing service for users who intend to import into this network during the business hours of each business place.

　　The business premises include all the business halls of its own entities and other channels where the number belongs. Users can call China Unicom’s 10010 customer service hotline to consult the business hours of the business hall.

　　【 Precautions 】

　　1. Number portability cannot be performed across local networks; If you are not qualified for port number transfer, please contact the original operator according to the SMS prompt;

　　2. After the portability service takes effect, it can be officially transferred to the new operator. Under normal circumstances, the business acceptance day takes effect from 8: 00 to 20: 00 every day;

　　3. Customer service numbers of operators are: Unicom 10010, Telecom 10001 and Mobile 10086.

　　【 Handling place 】

　　China Unicom has its own business hall and authorized cooperative business hall.

　　[Charging standard]

　　No charge.

　　[Frequently asked questions]

　　Answers to Frequently Asked Questions about China Unicom’s Port Number Transfer to Network

Recommended reading:

The full text and interpretation of the 2019 Regulations on the Management of Port Number Transfer Services will be implemented on December 1.

CCTV News:China COVID-19 vaccination exceeded 600 million! It continues to be in the state of acceleration. Recently, a series of COVID-19 vaccination data in China have been disclosed one after another. On the whole, China COVID-19 vaccine has high safety, low adverse reaction rate and high vaccination rate. In the face of new challenges brought by mutant strains, authoritative experts said that in every critical moment of the race against the virus, in addition to accelerating the vaccination speed and blocking the spread and variation of the virus, the technical route of inactivated vaccine in China is suitable for quickly responding to mutant strains.

The local epidemic situation in Guangdong is relatively complicated. By combing the epidemic transmission chains in Guangzhou, Foshan and Maoming, we can basically trace back to the earliest confirmed cases reported in Liwan, Guangzhou. Since May 21st, the detected gene sequencing results of infected people are highly homologous, all of which are Covid-19 mutant strains that appear in India with extremely fast transmission speed. However, the infected strains in Shenzhen this round belong to Covid-19 mutant strains found in the UK, and the intergenerational transmission time of the virus is decreasing. Disease control experts say that we are at a critical moment in the race against the virus.

In the face of the emerging mutant strains, authoritative experts said that the existing vaccines can cope with the mutant viruses, and at the same time, people are advised to speed up vaccination.

Shao Yiming, a researcher at China CDC:Mutant strains will reduce the comprehensive antibody of the vaccine by about 10-20 percentage points, so the protection rate of the vaccine is still above 50%, so the existing vaccines can still cope with these mutant viruses, but we say it is very important that everyone should vaccinate quickly, because the mutation of this virus will continue to occur. If we want to stop the mutation and prevent the mutant strains that can escape the immune surveillance of the vaccine, we must stop its spread and give it no chance to continue to change.

According to experts, on the one hand, we should speed up vaccination and stop the spread and mutation of the virus. On the other hand, according to the existing mechanism of vaccine production, vaccine production will also respond quickly if a seriously mutated strain really occurs.

Shao Yiming, a researcher at China CDC:A new generation of vaccine has been studied for these mutant strains, and the technical route of national inactivated vaccine is especially suitable for responding to mutant strains quickly, because we don’t make any changes to the whole vaccine supply, just adjust it at the feeding end, and turn the original early epidemic strain into a mutant strain that threatens us now, so in a production cycle, it is the mutant vaccine that comes out at this end, so people don’t have to worry.

Regarding whether to replenish booster shots after 6 months, experts stressed that the so-called booster shots are to keep the immunity to the virus after the first vaccination, according to the status of immune regression in tracking experiments and according to the proportion of human body’s defense ability to the virus. At present, the most important thing is to complete the first vaccination and establish an immune barrier as soon as possible.

Shao Yiming, a researcher at China CDC:The inoculation amount per day has been maintained at more than 5 million doses for a long time, and it has recently accelerated to more than 10 million doses. It is no problem for our potential to exceed 20 million doses per day. Therefore, it is completely possible to achieve the goal of establishing a group immune barrier by vaccinating according to the current planned rhythm.

Why did the recent Ukrainian attack on the Russian Black Sea Fleet succeed frequently? The increasing battle damage of the Russian Black Sea Fleet will have an impact on the situation in Russia and Ukraine?

Intended to cut off Russian supplies

Data map: Russian Black Sea Fleet (Source: CCTV pays attention today)

The Ukrainian side said on March 24th that the Ukrainian Defence Forces had hit the landing ships Yamal and Azov of the Russian Black Sea Fleet, a communication center and many infrastructures.

Analysis of Ukraine’s recent combat operations, military observer Zhou Weizheng believes that this is to further weaken the Russian military’s logistics supply capacity in relevant directions.

Zhou Weizheng: The Ukrainian army’s recent operational focus is to crack down on Russia’s logistics supply links, using air-to-ground cruise missiles, drones and unmanned boats to crack down on Russian refineries, thermal power plants, material and oil warehouses and other infrastructure. Landing ships, as an important supply vehicle in the south of Russia, have also become the key targets of the Ukrainian army.

If the attack did injure two Russian landing ships, as the Ukrainian army said, it would add insult to injury to the Russian Black Sea Fleet, which would further weaken the Russian military’s logistics supply capacity in the direction of Zaporoze and Hellson. If the Crimean Bridge is hit again in the next step, then Russia’s logistics supply will become a major issue affecting the trend of the situation.

It has little impact on the overall situation of Russia and Ukraine.

Data Map: The headquarters of the Russian Black Sea Fleet was attacked (Source: CCTV pays attention today)

Zhou Weizheng said that although the Russian Black Sea Fleet has been damaged in recent wars, it will not have a major impact on the overall war situation in Russia and Ukraine.

Zhou Weizheng: Judging from the current overall situation, Russia’s attacks are mainly concentrated in the direction of Donetsk and Zaporoge, and the amphibious landing operation in the sea direction has basically been abandoned.

Although the losses caused by Ukraine to the Russian Black Sea Fleet are increasing, it is difficult to have a fundamental impact on the situation in Russia and Ukraine.

How to defend against suicide unmanned boats?

Data map: Wujun unmanned boat (Source: CCTV pays attention today)

After the outbreak of the conflict between Russia and Ukraine, unmanned boats created a brand-new style of asymmetric warfare in modern naval warfare, which also made how to defend against suicide unmanned boat attacks a topic of great concern.

In this regard, Zhou Weizheng analyzed.

Zhou Weizheng: One of the important reasons why the unmanned boats of the Ukrainian army are outstanding in actual combat is that the Russian army lacks sufficient and powerful early warning aircraft and drones, and its full-time and all-round battlefield situation awareness ability is relatively weak. The attacked ships have single defense means and limited capabilities.

In the future, to deal with unmanned boats, it is necessary to improve the joint reconnaissance and search ability of land, sea and air, grasp the specific information of the unmanned boat’s release base or the mother ship it carries, and then use long-range precision firepower to attack and destroy it from the source or during the voyage. If there is a "fish escaping from the net", electronic jamming can be carried out on the unmanned boat, its communication link can be cut off, and the sensor on the boat can be blinded. At the same time, laser and high-precision near-anti-gun system can be used to intercept it.

(Yang Guangwang Military Channel Reporter: Yuan Mengting Yu Lan)

　　The middle and lower reaches of the Yangtze River and the Dongting Lake and Poyang Lake connected with them are the only homes of the Yangtze finless porpoise, an endemic species in China. In the 1990s, about 3,000 Yangtze finless porpoises lived here. With the over-exploitation and utilization of the golden waterway of the Yangtze River, the ecological environment of the Yangtze River has been increasingly damaged, and the fish resources are decreasing, which means that the homes on which the Yangtze finless porpoise depends have been destroyed and the bait resources are seriously in short supply.

　　The Yangtze River can’t hold not only the baiji, the white sturgeon and the Chinese sturgeon, but also the Yangtze finless porpoise. We can’t let the Yangtze finless porpoises sit still, we must find new homes for them, and we must find enough bait for them.

　　In 1986, the first International Symposium on the Biology and Species Protection of Freshwater Dolphins was held in Wuhan. Scientists in China took the lead in putting forward three measures to protect Yangtze finless porpoises, one of the most important measures is to immediately carry out ex situ conservation of Yangtze finless porpoises, that is, to move some Yangtze finless porpoises out of the Yangtze River to safer natural waters than the Yangtze River, and to implement species conservation and protection. When the environment of the Yangtze River becomes better in the future, the descendants of these Yangtze finless porpoises will be moved back to the Yangtze River, so that the Yangtze finless porpoises can stay in the Yangtze River forever.

　　After a long period of exploration, failure and persistence, scientists established the ex-situ conservation theory of Yangtze finless porpoise, and formed a complete ex-situ conservation technology system, including the site selection of provenance and ex-situ waters, population health and genetic management, and the technology of restoring the natural population of the Yangtze River.

　　After years of investigation and demonstration, it is determined that the old road of Swan Island in Hubei Province is suitable for ex-situ conservation of finless porpoises. In 1990, the first batch of five Yangtze finless porpoises moved from the main stream of the Yangtze River to Swan Island. The results of subsequent monitoring and research show that they are completely adapted to the old course of Swan Island and can reproduce naturally. In 1992, Hubei Yangtze River Swan Island Baiji Dolphin National Nature Reserve was successfully established.

　　By 2021, there will be about 100 Yangtze finless porpoises in the ex-situ nature reserve, and new ex-situ nature reserves of Yangtze finless porpoises will be built in Hubei, Hunan and Anhui, led by Hubei Swan Island Baiju National Nature Reserve. At the same time, Hubei Yangtze River Swan Island Baiji Dolphin National Nature Reserve has also exported six Yangtze finless porpoises to these newly-built ex situ nature reserves.

　　As an important technical support for ex situ nature conservation, the Yangtze finless porpoise breeding and protection in artificial environment has also achieved a series of successes. So far, five Yangtze finless porpoises have been successfully bred in Wuhan Baiju Dolphin Museum and Tianezhou artificial cage, and the second generation of breeding has also been successful.

　　Ex situ nature conservation is not the ultimate goal of Yangtze finless porpoise protection, but the ultimate vision of ex situ nature conservation is the restoration and restoration of natural habitat, the return of wild species to nature and the rejuvenation of natural populations. At present, the Yangtze River Conservation is rapidly restoring the natural habitat of the Yangtze finless porpoise, and the 10-year ban on fishing has provided a golden opportunity for the restoration of food and resources of the Yangtze finless porpoise.

　　The Institute of Hydrobiology, Chinese Academy of Sciences, Hubei Yangtze River Swan Island Baiji Dolphin National Nature Reserve, Hubei Xinluo Section Nature Reserve and other units are working together to carry out the experiment of wild Yangtze finless porpoise and its gradual return to natural waters. The ex-situ nature conservation has been successful, avoiding the risk of extinction of Yangtze finless porpoise species and laying a solid foundation for the Yangtze finless porpoise’s return to the Yangtze River and the two lakes. China scientists’ original contribution condensed into "China experience", which was widely recognized by international academic circles, and was called "demonstration" for the successful protection of small cetaceans.

The industry and commerce department reminds consumers to pay attention to the following points when purchasing automobile coolant:

First, the brand of coolant is generally its freezing point value. When purchasing, the coolant with freezing point value about 10℃ lower than the lowest temperature in the region should be selected in combination with the use region and season. For example, in the south of the Yangtze River, the coolant of-25 can be used, and in the north, northeast and northwest of the Yangtze River, the coolant of-35 to-50 should be used.

Second, it is recommended that coolant should not be mixed. Different manufacturers and brands of coolant may have chemical reactions after mixing, which may easily lead to the failure of anti-scaling and anti-corrosion functions.

Third, some antifreeze solutions are concentrated solutions, which must be diluted with water to achieve the best antifreeze effect. For diluted water, it is recommended to use deionized water or distilled water, and purified water or cooled boiled water can also be used for emergency. However, tap water, groundwater or surface water should not be used, otherwise, it is easy to produce scale and corrode the cooling system.

4. The nitrite preservative added in ethylene glycol antifreeze is carcinogenic. Do not inhale it. After skin contact, it should be cleaned with water immediately.

　　August 30th, the grand opening of the Chengdu Auto Show, the auto show of the car companies have brought their own knock-out products, and the first day of the debut of the new car there are 11 models, including Avita 07, JK 7X such as new power products have received a lot of attention, although there are many new cars, but there is no pure fuel vehicles, basically with batteries and motors, and the vast majority are SUV models, and four of them have extended range models, which may be the future market trend and consumer choice.

　　Avita 07

　　Avita 07 is an SUV model officially released by Avita Technology at the 2024 Chengdu Auto Show. The 07 will also provide an extended range version and a pure electric version. The extended range version uses Avita’s new Kunlun extended range technology and is equipped with a power system composed of a 1.5T range extender and a motor. Two-wheel drive and four-wheel drive versions are available.

　　Avita 07 also continues the 100% original design aesthetic of the Avita series, inheriting the family design DNA and applying the AVATR design concept 2.0. With a closed grille, the iconic double-layer LED daytime running lights are highly recognizable. The side is a dynamic crossover design style, with smooth and muscular lines, equipped with hidden door handles and electronic exterior mirrors. The roof is equipped with Huawei’s new generation of lidar.

　　In addition, Avita has previously invested in Huawei, invited Huawei’s "second princess" Yao Anna as the experience officer, etc. With Huawei’s support, the intelligent driving will also perform well. The car comes standard with lidar, equipped with Huawei’s high-end intelligent driving system, parking and driving, upgraded city NCA intelligent driving pilot assistance, and the new omnidirectional anti-collision system CAS 3.0 are expected to appear in this new car.

　　Extreme Krypton 7X

　　Extreme Krypton 7X adopts a family-style design language, and the overall shape is fashionable and atmospheric. In the front part, the new car is equipped with an integrated smart light screen, which perfectly integrates light strips, daytime running lights, and headlights to form a horizontal line that runs through and improves the visual width. However, in terms of design, the recognition with Avita at a glance is still slightly lacking. It will also be equipped with a high-end smart driving system, equipped with a watchtower-type lidar, and will also use a waterless design and borderless rearview mirrors. There are also 64 LED lamp beads on both sides of the body, which play the role of interactive lights when assisting driving. In the previous smart driving tests, Huawei has a slight advantage. In the follow-up test media will also conduct smart driving tests on the two cars. We will wait and see.

　　The 2024 Chengdu Auto Show is undoubtedly a technological and aesthetic feast in the field of new energy vehicles. The two cars have made their debut at this Chengdu Auto Show, and Avita 07 has five advantages: aesthetic ceiling, luxury ceiling, smart driving ceiling, chassis ceiling, and range-extended ceiling. It occupies the commanding heights of the value of new energy intermediate luxury SUVs. According to the plan, Avita 07 pure electric and range-extended dual cars will be officially launched in September to meet the diverse and all-scene vehicle needs of users.

On April 7th, Jackie Chan’s 70th birthday, I wrote with emotion: "April 7th has not yet arrived, and many friends are already reminding me, big brother, it will be your 70th birthday soon! Every time I hear this number, I am still surprised for a second, am I already seventy years old?", "It is a lucky thing to be old. Especially those of us who make action movies know how rare this luck is." And sent out many precious old photos.

The full text is as follows:

My dearest movie fans around the world:

April 7th has not yet arrived, and many friends are already reminding me, big brother, it will be your 70th birthday soon!

Every time I hear this number, I am still surprised for a second, am I already seventy years old? After being surprised, my second thought is what my eldest brother Hung Jinbao said: It is a lucky thing to be old. Especially those of us who make action movies know how rare this luck is.

Some time ago, many friends saw the photos on the Internet and came to care about my physical condition. I would like to reassure everyone that this is the movie I am currently shooting, and it requires the look of white hair and white beard. Over the years, as long as the plot requires it, whether it is a thrilling action scene or a different look, I am willing to try it. Sixty-two years into the industry, I am still making movies today, which is worth cherishing.

Recently, when my colleagues were organizing the company’s database, they dug out a lot of previous photos, and they selected some for me to accompany this Weibo. Looking at these photos, I have a lot of emotions in my heart. If I want to combine these emotions into one sentence: I love movies, I love you.

Once again, thank you all for your birthday wishes. I hope everyone is healthy and happy!

Those who have been to the wilderness, the forest sea, and the isolated island must never forget the glance they took when they looked up at night. A milky white ribbon cut across the boundless darkness, and the stars shone with silver light hundreds of millions of years ago. Every star is a star like the sun, and human beings realize their insignificance, loneliness, and greatness at this moment.

But such sights are often only seen in areas with minimal light pollution. In cities, not to mention the Milky Way, even the brightest star, Sirius, has a hard time passing through artificial light curtains. In May, the northern hemisphere’s Galactic season has arrived, and stargazers are planning to take a long vacation to travel to Xinjiang, Tibet, and Inner Mongolia to see the Milky Way. But you would never have imagined that you can actually see the magnificent Milky Way without running so far, or even leaving Shanghai.

Nanhuizui Sea View Park in the new area of Lingang is such a magical place. At night, looking at the East China Sea from here, you can only hear the waves crashing on the shore, and you can’t see your fingers – such a place with very little light pollution is the perfect place to watch the stars and the Milky Way.

Taken in Nanhuizui Guanhai Park, the Milky Way is visible to the naked eye in the sky. Hu Xingyang, photo

From another angle, look at the sky full of stars. Hu Xingyang, photo

It’s rare to see a star, and some people may be seeing the Milky Way for the first time. Why not take a picture and leave a souvenir?

What, can’t shoot? Don’t panic, the tutorial is here. I will teach you hand in hand, so that you can turn into a master of Hoshino photography, and the galaxy photos taken with your mobile phone can immediately detonate your Moments.

Step 1: Find the Milky Way

The short holiday is 5 days, which is from the ninth to the twelfth day of the lunar calendar. The moon phase is the first quarter moon, and the brightness is higher. The moon is bright and the stars are thin, and when the moon is hanging high, the stars are naturally dim.

However, the moon always sets when it rises. At 2 am, the moon basically falls below the horizon, which no longer affects stargazing and shooting. At this time, the center of the galaxy has risen to a height of 50 ° from the ground, which is suitable for observation and shooting.

The location of the Milky Way can be identified by the naked eye; it can also be located by the astrology APP. Generally speaking, if you look east, you can find it.

Step2: Shooting!

Why did you start shooting? Don’t worry, shooting stars is that simple. Set up the tripod, fix the camera or mobile phone, and then adjust the parameters – exposure time is 20 seconds, aperture F2.8, sensitivity ISO2000, focus is set to manual, pull to infinity, and recycle some more.

If the maximum aperture of your lens is less than 2.8, you can increase the sensitivity accordingly. The stars are in constant motion relative to the ground, so the shutter time cannot be increased, otherwise it will be trailed.

The mobile phone uses professional mode, and the parameters are the same as above. Some mobile phones come with star mode, so you can rest assured to leave it to smart shooting.

Have you learned it? "May Day" holiday, come to Lingang and try it!