On the road of pursuing technological innovation, we never stop.

"China Sky Eye" FAST has discovered more than 740 pulsars, the Beidou satellite navigation system has been fully launched to embrace the earth, the order for the domestically produced large aircraft C919 has exceeded 1,000, and the world's longest cross-sea bridge - the Hong Kong-Zhuhai-Macao Bridge connects Guangdong, Hong Kong and Macau , "Shenwei·Light of Taihu Lake" supercomputer realizes tens of millions of cores for the first time in parallel first-principles calculation simulation... These great powers that are out of the circle with their strength not only make the Chinese people proud, but also attract the attention of the world.

　　On January 31, 2023, the Political Bureau of the CPC Central Committee conducted the second collective study on accelerating the construction of a new development pattern.

When presiding over the study, General Secretary Xi Jinping emphasized that it is necessary to speed up the pace of self-reliance and self-improvement in science and technology, and solve the problem of "stuck neck" in foreign countries.

　　In recent years, my country's scientific and technological innovation has achieved world-renowned achievements, laying a solid foundation for paving the way to a strong country.

The achievements of major projects and projects have condensed the wisdom and sweat of scientific research workers. The backbone of the country built by the heavy equipment of a big country vividly interprets the majestic power of breaking through the limit and never giving up.

At present, we are facing both rare historical opportunities and severe challenges. Only by accelerating the realization of high-level technological self-reliance can we take the lead in the fierce competition.

Time after time of practice also illustrates a truth: only by being self-reliant and self-improving can we not be "stuck" on the road to development.

△"Struggle" manned submersible

　　To promote self-reliance and self-improvement in science and technology, generations of scientific researchers have made great achievements for a long time.

From the "Jiaolong" to the "Deep Sea Warrior" to the "Struggle", China's manned deep dives have advanced into the 10,000-meter deep blue, setting a new record.

"The animals in the 'Dark World' form a garden. It's amazing and mysterious!" As early as 2018, Wang Pinxian, an academician of the Chinese Academy of Sciences, a marine geologist, and a professor at the School of Ocean and Earth Sciences of Tongji University, took a deep dive on the "Deep Sea Warrior" The instrument dived to a depth of 1,400 meters and observed samples for up to eight hours.

Academician Wang said that he hopes that young people will explore the mysteries of the deep sea together and head towards the deep sea.

△Wang Pinxian, academician of the Chinese Academy of Sciences, marine geologist, and professor of the School of Ocean and Earth Sciences, Tongji University

　　On November 10, 2020, the "Struggle" successfully bottomed at a depth of 10,909 meters in the Mariana Trench, setting a new record for China's manned deep dive.

Zhang Wei, a senior engineer at the No. 702 Research Institute of China Shipbuilding Corporation and the chief pilot of the "Struggle" full-sea deep manned submersible, said that as a national heavy weapon, the "Struggle" is to explore the mysteries of marine science, protect and rationally utilize Marine resources provide strong support.

He also said that we must maintain a state of struggle and continue to march towards the deep sea!

△High-speed rail

　　From the wheel-rail high-speed train with a speed of 350 kilometers per hour to the maglev train with a speed of 600 kilometers per hour, China's high-speed rail technology has continued to make breakthroughs.

As Shen Zhiyun, academician of the Chinese Academy of Sciences, academician of the Chinese Academy of Engineering, and professor of Southwest Jiaotong University, said, it is not difficult to get on the "flying high-speed rail", and China's technology has already made it possible.

△ Shen Zhiyun, academician of the Chinese Academy of Sciences, academician of the Chinese Academy of Engineering, and professor of Southwest Jiaotong University

△ "Sunway Taihu Light" supercomputer

　　Supercomputing serves the major needs of the country and is the new focus of world technological competition.

How awesome is the super calculation?

Fu Haohuan, deputy director of the National Supercomputing Wuxi Center and a professor at Tsinghua University, gave an example. When it comes to the weather, there is an old saying that "man's calculation is not as good as heaven's calculation", but now we can add the second half of the sentence to it - "day's calculation is not as good as super Calculate".

"Over the years, supercomputing has played a very important role in weather forecasting. Very complex calculations may be a piece of cake for supercomputing. Even if you want to know the weight of a cloud overhead, you can do it in minutes I will calculate the answer for you." Fu Haohuan said.

△ Fu Haohuan, Deputy Director of National Supercomputing Wuxi Center and Professor of Tsinghua University

　　In the digital world, "China's supercomputing" has run out of the world's new speed one after another.

Gan Lin, director of the R&D Center of the National Supercomputing Wuxi Center and an associate researcher at Tsinghua University, said that as a researcher, he will devote himself wholeheartedly to creating more results with this world-leading supercomputing system.

△Hong Kong-Zhuhai-Macao Bridge

　　The 55-kilometer-long Hong Kong-Zhuhai-Macau Bridge is the world's longest cross-sea bridge. It was officially opened to traffic in October 2018, connecting the mainland, Hong Kong and Macau.

There are many difficulties in the construction of the bridge. Among them, when the 6.7-kilometer subsea tunnel is laid deep in the sea, the accuracy must reach the centimeter level. Since there is not much construction experience in this area at that time, it can only rely on independent innovation to solve the problem.

Jing Qiang, chief engineer of the Hong Kong-Zhuhai-Macao Bridge Administration, said that the Hong Kong-Zhuhai-Macao Bridge has created many world firsts. In the past, everyone thought that building this bridge was an impossible task. Unconvinced, he finally completed the cross-sea project in fifteen years. Since then, one bridge has connected three places, and the natural moat has become a thoroughfare!

△Jing Qiang, Chief Engineer of Hong Kong-Zhuhai-Macao Bridge Authority

　　Bravely climb the peak of science and technology and solve development problems.

Dare to be the first in the world, write the footnotes of the era from catching up to surpassing, and let the heroic appearance of the country shine on the world stage.