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发表于 2009-12-28 17:14
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this is the sec paragraph i translated ,pls kindly give me your advice
The same day, Tsien Hsue-shen gave the first lecture on the missile to the 156 colleges graduates cultivated by new China.Most of the audience in the lecture had become the backbone strength of the missile and satellite industry of China.In 1957, Tsien was appointed as the chief of Fifth Research Institute of Defense.Hereafter, he always was the supreme leader of Chinese missile and spatial research.In 1960, China has successfully launched the first self-restraint short range missile.In 1964, China has launched the first medium-range missile.Two years later,a missile with nuclear warhead was launched successfully in Jiuquan City of Gansu province,which made China among the row of countries to own the own nuclear-armed missile .As early as in 1953, Tsien had started studying the space flight possibility. In 1965,he submitted a proposal to the PRC government to make the satellite as soon as possible.At that time, satellite was only own patent of the two countries Soviet Union and America.He founded China Aerospace of Science and Technology (CAST) in 1986, and was appointed as the first chief.This institute was responsible for developing the satellite technology and to carry out astronautics research.“the Dong Fang Hong-1”,the first satellite of China,weight 173 kilograms,which installed on a domestically produced rocket and launched to lift off in April 24, 1970.When developed this rocket, Tsien's technology could play the prominent role.Since then, China has made the significant progress in both astronautics science and the missile development aspect.Until now China has already launched more than 30 satellites. |
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