This concept has been mentioned again and again by the supreme leader in three important diplomatic activities.

2025年11月2日 | admin | aljs

On April 26, the top leader delivered a keynote speech at the opening ceremony of the second "Belt and Road" international cooperation summit forum;

On April 28th, the Supreme Leader delivered an important speech at the opening ceremony of the 2019 Beijing World Horticultural Exposition in China.

On May 15th, the Supreme Leader delivered a keynote speech at the opening ceremony of the Conference on Dialogue among Asian Civilizations.

Three important diplomatic activities and three different themes all mentioned the same idea — — Building a community of human destiny. From the community of destiny between countries, the community of destiny within the region, and the community of destiny of mankind, the Chairman of the Supreme Leader spoke earnestly and thought long-term, and repeatedly expounded China’s proposition in the light of the overall situation of China’s development and international cooperation, contributing China’s wisdom to the world and providing China’s plan.

On April 26th, the top leaders and foreign leaders attending the opening ceremony of the second "Belt and Road" international cooperation summit forum stepped into the venue together.

● Facing the future, we should focus on key points, work hard, and jointly draw meticulous and delicate "meticulous paintings" to promote the continuous development of the "Belt and Road" along the direction of high-quality development.

● We should uphold the principle of mutual cooperation, co-construction and sharing, advocate multilateralism, discuss and handle everyone’s affairs, and urge all parties to give full play to their strengths and potentials through various forms such as bilateral cooperation, tripartite cooperation and multilateral cooperation, so as to make little drops of water make an ocean a tower.

● We should adhere to the concepts of openness, green and honesty, not engage in closed and exclusive circles, take green as the background, promote green infrastructure construction, green investment and green finance, protect our common home on which we live, insist that all cooperation operates in the sun, and jointly fight corruption with zero tolerance.

● We should strive to achieve the goals of high standards, benefiting people’s livelihood and sustainability, introduce rules and standards that are generally supported by all parties, and promote enterprises to conduct projects in accordance with generally accepted international rules and standards in construction, operation, procurement and bidding, while respecting laws and regulations of various countries. We must adhere to the people-centered development thinking, focus on eradicating poverty, increasing employment, and improving people’s livelihood, so that the achievements of building the "Belt and Road" can better benefit all the people and make tangible contributions to local economic and social development, while ensuring commercial and financial sustainability, and doing good things from the beginning to the end.

● The key to building the "Belt and Road" is interconnection. We should build a global interconnected partnership to achieve common development and prosperity. I believe that as long as everyone in Qi Xin works together and helps each other, even though we are separated by thousands of miles of Qian Shan, we will certainly be able to walk out of a mutually beneficial and win-win road.

On April 28th, the Supreme Leader attended the opening ceremony of the 2019 Beijing World Horticultural Exposition in China, and delivered an important speech entitled "Working Together for a Green Life and Building beautiful homeland Together".

● The earth is the only home for all mankind to live on. We should protect the ecological environment like our own eyes, treat it like life, build the foundation of ecological civilization and take the road of green development!

We should pursue the harmony between man and nature. The mountains and forests are dyed, the plains are blue and green, and the birds and flowers in urban and rural areas are fragrant. Such natural beauty not only brings people the enjoyment of beauty, but also is the support for mankind to move towards the future.

● We should pursue green development and prosperity. Green is the background color of nature. Good ecology itself contains infinite economic value, which can continuously create comprehensive benefits and realize sustainable economic and social development.

● We should pursue the feelings of loving nature. "Take it in moderation and use it sparingly" is the true meaning of ecological civilization. We should advocate a simple and moderate, green and low-carbon lifestyle, reject luxury and waste, and form a civilized and healthy lifestyle.

● We should pursue the spirit of scientific governance. Ecological management must follow the law, make scientific planning, adjust measures to local conditions, and make overall plans to create a pluralistic symbiotic ecosystem.

● We should pursue cooperation and cooperation. Building beautiful homeland is the common dream of mankind. Facing the challenge of ecological environment, human beings are a community of destiny, and no country can be immune to it.

● A generation has a generation’s mission. The construction of ecological civilization is beneficial to the present and the future. Let’s pass on the baton from ourselves and now on.

On May 15th, the Supreme Leader attended the opening ceremony of the Conference on Dialogue among Asian Civilizations and delivered a keynote speech entitled "Deepening the Exchange and Mutual Learning of Civilizations and Building a Community of Asian Destiny". This is before the opening ceremony, Chinese and foreign leaders took a group photo with important guests attending the opening ceremony.

● We should strengthen exchanges and mutual learning among different countries, nationalities and cultures in the world, and lay a solid foundation for building a community of Asian destiny and a community of human destiny.

● Humans are only different in color and language, and civilizations are only colorful, but there is no difference between high and low. We should uphold equality and respect, abandon arrogance and prejudice, deepen our understanding of the differences between our own civilization and other civilizations, and promote exchanges, dialogues and harmonious coexistence among different civilizations.

● All good things are interlinked. People’s yearning for beautiful things is unstoppable by any force! We should not only make our own civilization full of vitality, but also create conditions for the development of other countries’ civilizations and make the world’s civilized gardens flourish.

● We should break down the barriers of cultural exchanges with a broad mind, absorb the nutrients of other civilizations with an eclectic attitude, and promote the common progress of Asian civilizations in exchanges and mutual learning.

● We should use innovation to increase the momentum of civilization development, activate the source of civilization progress, and constantly create civilized achievements that span time and space and are full of eternal charm.

(Central Radio and Television General Station CCTV Network)

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Always say that manufacturers cut corners？ They also fight for a better user experience.

2025年11月1日 | admin | gzxq
Many users will worry about the workmanship of buying mobile phones. After all, mobile phones are not cheap objects, and the purpose of buying mobile phones is not to disassemble and inspect the workmanship. As an editor who often does disassembly columns, the mobile phone manufacturers who can live to this day are unambiguous in their internal work for the actual user experience. 315 "International Consumer Rights Day" is coming. Today, we will take stock of what efforts manufacturers have made in mobile phone work for user experience.
Whether the protection is in place is the standard to test the internal work of mobile phones.
The internal protective measures of mobile phones are mainly to protect internal components from vibration, dust, water vapor and electromagnetic interference. The precise components in the mobile phone are fixed on the motherboard in the form of soldering, and all the important components on the mobile phone motherboard realize various complex operation instructions on the mobile phone through BTB socket and printed circuit with other components.
Excellent internal workmanship is indispensable for BTB protection.
BTB seats are all equipped with protective mobile phone motherboards.
BTB cradle is the "joint" connecting other components on the mobile phone motherboard, and the fineness of BTB protection can measure the workmanship of a mobile phone to a certain extent. The protection of BTB socket mainly guarantees two points, one is to ensure the connection between BTB socket and other FPC (flexible printed circuit board), and the other is to strengthen the connection between BTB socket and soldering to some extent. Tin is a very active metal, which is prone to oxidation failure, and the protection of BTB ligand slows down the tin oxidation reaction on printed circuits to some extent.
How to prevent dust and water is a big problem.
The selling point of some mobile phones is to promote IP68 dustproof and waterproof, of which 6 is dustproof and 8 is waterproof. Many people think that waterproof and dustproof is just to prevent contact with water and dust, but in fact it is not just that. We should know that the whole mobile phone is not completely closed, and the Type-C interface, SIM card slot and power button are all openings connected with the internal components of the mobile phone.
Waterproof rubber ring in red frame
It is the simplest to set waterproof for SIM card slot, just set waterproof rubber around the card slot, and set a waterproof rubber mold in the middle frame of the mobile phone. The dust-proof and water-proof measures such as earphones and speakers are to set a layer of filter screen around the speaker, and a waterproof rubber is set around the filter screen, so that air can circulate and water can be prevented from entering. At the same time, the speaker and microphone themselves are waterproof, so water entering the speaker will not cause too much harm to the mobile phone.
The waterproof of 3.5mm earphone interface and charger is mainly realized by setting a layer of rubber waterproof inside the mobile phone. At the same time, we should pay attention to that water is easy to remain inside the components, and most of the water contains many impurities. In these key dustproof and waterproof parts, manufacturers will set waterproof coatings.
How to shield electromagnetic interference in a land of land and gold?
Conductive foam for cushioning and shielding electromagnetic interference
The main board of mobile phone is short of land and gold, and the distance between components is very close, which inevitably leads to electromagnetic interference between different components. In order to solve the electromagnetic interference of components, mobile phone manufacturers mainly use shielding cover, copper foil and conductive foam. Many friends don’t quite understand the function of point foam. Conductive foam mainly plays a shielding role, reducing the interference between different components, and at the same time, it can also play a role in buffering and damping.
Waterproof, dustproof, shockproof and reducing electromagnetic interference are only the basis for the normal operation of the mobile phone. The most critical part of the user experience is to give full play to the performance of the mobile phone hardware, which is inseparable from the internal heat dissipation of the mobile phone.
02 heat dissipation is an important consideration for mobile phone workmanship.
The improvement of mobile phone performance brings greater absolute value of heating density; 5G signals require more antennas and also bring heat; Closer arrangement of components; At present, the mainstream glass case ….. all of the above put forward new requirements for the heat dissipation of mobile phones. Mobile phone manufacturers have introduced unique technologies such as graphene heat dissipation, VC vapor chamber and liquid cooling heat dissipation on the basis of the traditional metal middle frame.
Graphene heat dissipation
Graphene heat dissipation is the most widely used heat dissipation technology in mobile phones. Graphene heat dissipation is mainly a heat dissipation technology developed by using the excellent thermal conductivity of graphite crystals. The advantages of graphite crystal as a heat dissipation material are: good high temperature resistance, difficult deformation when heated, strong plasticity and light weight, and the heat dissipation shape can be changed according to requirements.
Graphene heat dissipation
It can be said that the above advantages of graphene can perfectly handle the heat dissipation of mobile phones. The heat dissipation coefficient of graphene is 2 to 5 times that of copper, but the density is only 1/10 to 1/4 of that of copper, which is convenient for the weight control of mobile phones. Graphene is easy to process, and manufacturers can make the shape of graphene according to the heat dissipation size; Graphene can shield electromagnetic waves and solve the problems of heating of mobile phone components and electromagnetic interference inside the mobile phone; At the same time, graphene does not deteriorate with the service life.
Graphene is not only used in smart phones, but also in electronic devices such as tablets, PCs and laptops.
Liquid cooling heat dissipation
Liquid-cooled heat dissipation exists in the mobile phone in the form of heat pipe, which transfers heat by using the changing characteristics of vaporization and liquefaction in the process of liquid heat transfer.
Liquid cooling heat dissipation principle
The working process of liquid cooling heat dissipation is as follows: the condensate is heated into steam → the steam flows to the condensation end under pressure difference → the steam is exothermic and condensed into liquid at the condensation end → the condensate at the condensation end returns to the evaporation end with the help of capillary force of the wick. Water is commonly used as the coolant in liquid cooling heat dissipation of computer, and the requirements of mobile phone are higher than those of PC, and oily materials are commonly used as the coolant.
Inside the red frame is a liquid-cooled radiator tube.
The advantages of liquid cooling heat dissipation are long service life and flexible arrangement. The liquid-cooled radiator tube will not produce mechanical or chemical degradation after permanent packaging, so the typical service life is about 20 years; Liquid-cooled heat dissipation can be placed in any position where heat dissipation is needed, and at the same time, the liquid-cooled heat dissipation pipe will absorb the heat in the distance and then dissipate heat.
VC vapor chamber
The principle of VC vapor chamber is the same as that of liquid-cooled radiator, but VC vapor chamber can radiate heat in four directions, so the heat dissipation effect is better.
The manufacturing process of vapor chamber is that wick structures are arranged in the upper and lower copper bases, and then brazed, filled with cooling liquid and sealed and brazed. Vapor chamber will have different designs according to the size of different components, and the manufacturing process is complicated and the manufacturing cost is high. Generally, VC vapor chamber is mostly used for high-end mobile phones or high-performance mobile phones.
In the red box is VC vapor chamber.
In addition to the above cooling methods, mobile phone manufacturers will also apply silicone grease to the corresponding position of SoC to transfer heat in a fast and direct way. The above heat dissipation does not exist alone in mobile phones, but often appears in combination of various technologies. It can be said that the development of heat dissipation technology has greatly improved the performance of mobile phones.
The heat dissipation technologies mentioned above do not exist singly in the mobile phone, but are often the combination of two, three or even four heat dissipation technologies, which greatly reduce the heat generation of the heavy load of the mobile phone. While mobile phones meet the performance bottleneck, manufacturers have added more structures to improve the user experience.
Differentiated workmanship is only for better user experience.
In the case that the shape of mobile phones has not changed, manufacturers have made great efforts under different structures. Some of these differences are to improve battery life and charging speed, some are to improve the user’s experience, and some are to reuse the internal volume of mobile phones as much as possible.
OPPO dual-cell battery
For example, in order to improve the charging and discharging efficiency of the battery, OPPO has a dual-cell battery.In order to achieve higher power fast charging, OPPO found that the safety risk of filling one 4000mAh battery with fast charging technology is much higher than that of filling two 2000mAh batteries. In the safe future, OPPO adopts the dual-cell mode, which can provide the best charging efficiency, and can also use the charge pump to halve the voltage of the dual-cell when discharging, thus obtaining better charging and discharging efficiency.
Real disassembly linear motor
In order to get a more exquisite touch feeling, the current flagship mobile phone is gradually equipped with a linear motor.The principle of linear motor is similar to that of pile driver, which directly converts electric energy into kinetic energy through the linear motion of vibrator. The advantage of linear motor is that it has fast vibration response speed, controllable vibration frequency and amplitude, and can debug complex vibration feedback, but it is bulky, difficult to design, complex to debug and expensive.
Stacked motherboard design
As we all know, the improvement of mobile phone performance and the support for 5G make it inevitable for mobile phones to integrate more and more components. Most manufacturers adopt the scheme of plug-in baseband to increase the area of mobile phone motherboard by 20-30%. Obviously, this is unacceptable for the inside of a mobile phone with an inch of land.Most manufacturers increase the utilization rate of mobile phone motherboards by stacking motherboards.
Write it at the end
The internal work of mobile phones is a huge and complicated project. From the above processes, we can see that the quality user experience brought by mobile phones requires not only the manufacturers to do a good job in the dust-proof, waterproof and shockproof aspects of mobile phones, but also to work hard on heat dissipation and differentiated work, which can be felt by users. It can be said that the mobile phone giants in the market attach great importance to mobile phone work, and the manufacturers have also invested enough money in the work of mobile phones.
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