When you play happily with friends, when you get together with your family to enjoy the warmth of home, and when you sit in a classroom with bright windows and clean windows and study hungrily, will you think of these hard-won happy event? Do you know who is quietly paying behind the scenes?
It is the uncles of the People's Liberation Army who have a peaceful, stable and prosperous environment in the frontier. All-weather training, every movement must be accurate and the task must be completed. Sometimes you even risk your life. Can you do this for decades? It is because of them that we have a strong country, and strengthening the army through science and technology is their tenacious sword to defend the motherland!
Facing the call of the sea, in 20 12, China's first aircraft carrier, the Liaoning, entered China's navy, and China ended the history of five major countries without aircraft carriers. The aircraft carrier has been in the water for a century, and it is desperate for the country to show its military strength. 12, 17 This year, China's first self-built domestic aircraft carrier, Shandong Ship, was officially launched, marking a major step in China's aircraft carrier industry, which excited the whole country and amazed the world, fully demonstrating the confidence of a maritime power to the world. Power through science and technology is no longer a slogan, but the world appearance of scientific and technological achievements.
Remember the success of Shenzhou 5's manned space flight? China became the third country with this technology. Do you still remember the first successful landing on the back of the moon on behalf of all mankind by Chang 'e IV? China is no longer a country at the mercy of others. 20 19 China Long March V carrier rocket was successfully launched, Xuelong II made its maiden voyage to the South Pole, the commercial launch of 5G accelerated, and Phoenix spread its wings at Beijing Daxing International Airport. These major scientific and technological events have demonstrated the extraordinary China style and the strength of China. Today, China is a brand-new technological power. On the journey of China's development, we have seen the future and hope.
Document "Fat Five" B, the constituent material of scientific and technological strength
Wenchang, Hainan, the closest rocket launch site in China to the equator. On May 22nd, a new generation of manned spacecraft weighing 5 tons was successfully launched here.
This is the first time that a rocket from China and even Asia has launched a spacecraft of more than 20,000 kilograms, which once again broke the rocket record of China and further established the position of the "Fat Five" family-Long March 5 series rockets in the first echelon of active rockets in the world.
Both the Long March 5B launch vehicle and the Long March V launch vehicle belong to the "family" of the Long March V series of rockets. Because of the large diameter of the rocket core, people affectionately call it "Fat Five".
The rocket with the largest carrying capacity in near-Earth orbit: Long March 5b is developed on the basis of Long March V carrier rocket, with a total length of 53.7 meters and a diameter of 5.2 meters. It uses non-toxic and pollution-free liquid oxygen, liquid hydrogen and kerosene as propellants, with a take-off mass of 849 tons and a low-earth orbit carrying capacity of more than 22 tons. It is the largest rocket in China at present.
Astronaut's mission
Aerospace is a systematic project, and the realization of dreams depends on the team's Qi Xin cooperation. Any slight negligence can lead to great disaster. From rockets, manned spacecraft, cargo spacecraft, space stations, to a screw, a blade and a corner of a space suit, it is inseparable from painstaking research and careful demonstration experiments. In order to ensure that their second race can catch up with their own hearts, they regard their hearts as an endless race to ensure that they can catch up with their own races every day. However, when asked about work experience, the two words that astronauts answered the most were "glory" and "worth it". When a person's fate is integrated into the wheel of history, when self-realization is linked with national glory, who says it is not a kind of luck?
Forward to Xinghai
From "Eye of the Sky" to "Chang 'e", from Mars to dark matter, the starry sky is vast, and China's exploration journey has never stopped. The first flight of the Long March 5B carrier rocket was successful. The space dream embodies the powerful spiritual strength to realize the Chinese dream and the strong synergy to forge ahead with one heart and one mind in the new era. Facing Xinghai, the first flight of the Long March 5B carrier rocket was a complete success. Its value lies in that it not only ignited China's ambition of self-reliance, independent innovation and promoting the construction of a space power, but also further promoted the pace of human exploration of the mysteries of the universe. China and the world are great feats with milestone significance in the space industry.