Aeronautics and Astronautics

China??s aeronautics and astronautics industry was established in the 1950s. At Xi??an, Shanghai, Shenyang and Chengdu, respectively, there are four large airplane manufacturing bases, capable of producing civilian and military aircraft. The ??Yun 7?? airliner produced by the Xi??an Aircraft Corporation has become the major type used for medium and short domestic flights. Since 1979, the China Aerospace Corporation has established trade, economic and technical cooperation relationships with more than 70 countries and regions, one after another, in various forms. It has exported airplanes, engines and airborne installations to several countries, and manufactured airplanes and engine components for foreign factories and business people. With a complete system encompassing research, design, trial manufacture, testing and production, China??s astronautics industry is capable of developing various types of carrier rockets, and developing and launching all kinds of satellites. Moreover, an aerospace instrumentation and command system has been established. Now among the world's leaders insatellite research and launching, China has mastered all kinds of technologies, including satellite recovery, the launching of satellites with single carrier rockets, satellite survey and control, and strong-propulsion carrier rocket trussing. China is capable of

launching remote-sensing satellites into near-earth orbit and earth-synchronous orbit, and meteorological satellites into sun- synchronous or.bit. It is also capable of providing satellite launching and monitoring and control services for foreign countries. On November 20, 1999 the first spacecraft, named ??Shenzhou,?? developed by China was launched by a China-made carrier rocket, and returned to earth after fulfilling space science experiments. According to statistics, between 1970 and 1999, China??s Long March series carrier rockets successfully launched 51 satellites (excluding those lanched by China for foreign countries).

 

??

On May 10, 1999, China's
"Long March IV-B" rocket
successfully carried the
"Fengyun I" meteorological
satellite and "Practice V" scientific experiment satellite into
an 870-km-high orbit
stationary with the sun.

??

 






Copyright or other proprietary statement goes here.
For problems or questions regarding this web contact [info@flp.com.cn].
Last updated: 2000-07-13.
主站蜘蛛池模板: 全彩acg本子| 国产免费观看a大片的网站| 一区二区三区日本视频| 日本精品啪啪一区二区三区| 亚洲国产最大av| 浮力影院欧美三级日本三级| 八戒八戒在线观看免费视频| 色综七七久久成人影| 国产性夜夜夜春夜夜爽| 中文字幕动漫精品专区| 国产精自产拍久久久久久| 99国产精品久久| 天天爽天天干天天操| 一个上面吃一个下免费| 成人毛片无码一区二区三区| 久久久久久九九精品久小说| 日韩人妻不卡一区二区三区| 五月综合色婷婷在线观看| 欧美成人a人片| 亚洲深深色噜噜狠狠爱网站| 狠狠干2019| 娇喘午夜啪啪五分钟娇喘| 久久一本精品久久精品66| 日韩在线免费播放| 亚洲fuli在线观看| 欧美同性videos免费可播放| 亚洲欧美日韩人成在线播放| 狠狠色综合久久婷婷色天使| 免费欧美黄色网址| 精品久久综合1区2区3区激情| 四虎在线最新永久免费| 色吊丝永久性观看网站大全| 国产亚AV手机在线观看| 青青草免费在线视频| 国产免费播放一区二区| 高清一级做a爱过程免费视频| 国产成人无码免费视频97| 国产h在线播放| 国产成人无码av片在线观看不卡 | 久久久久久久久久久久久久久| 日本在线观看电影|