China became the fifth country in the world to launch a satellite. 1979, Roy 1 space survey ship was built and put into use, and China became the fourth country in the world with an ocean-going space survey ship. 1980 In May, a large launch vehicle was launched into the Pacific Ocean, marking that China's launch vehicle technology reached a new level. China has successfully developed four kinds of Long March rockets: Long March 1, Long March 2, Long March 3 and Long March 4.
Second, in terms of agricultural technology, China is a big agricultural country. The research results of Yuan Longping, the father of hybrid rice, not only solved the problem of eating in China, but also made outstanding contributions to reducing world hunger.
Third, in terms of industrial technology,1In July, 957, Kunming Machine Tool Factory successfully trial-produced the first high-precision electric coordinate boring machine in China. June 1958 Changchun No.1 Automobile Factory successfully trial-produced the first domestic limousine in China. 1961April, Shanghai Jiangnan Shipyard successfully manufactured the first 10,000-ton hydraulic press in China. China has gone through a historical process of 6 1 year, and now some industrial technologies in China have entered the world's leading industries.
4. In terms of communication technology, in June, 5438+February, 0983, the Computer Research Institute of National University of Defense Technology developed a large computer system named "Yinhe". Since then, China has stepped into the ranks of the world's development giants. In 20 10, China successfully developed Tianhe-1, the fastest large computer in the world.
Extended data:
Major changes in the motherland:
Reform and opening-up, reform and opening-up, make the pace of building a new countryside in China faster and faster. More and more rural people go to middle schools and universities, and become a think tank for building a new generation of the motherland; Mobile phones, color TVs, refrigerators ... things that I never dared to think about have all come true. In the past, the countryside gave people the impression that it was dirty and messy.
When it rains, the path becomes a "dirt road"; The mountains are overgrown with weeds and nobody cares. Now, the government has ordered road construction, and the rural infrastructure has been well improved. Reform and opening up have made the countryside full of vitality and made people's lives happier.
Baidu encyclopedia-motherland
People's network-proud of the development achievements of the motherland