综合一区欧美国产,99国产麻豆免费精品,九九精品黄色录像,亚洲激情青青草,久久亚洲熟妇熟,中文字幕av在线播放,国产一区二区卡,九九久久国产精品,久久精品视频免费

 
  .contact us |.about us

Highlights ... ...
Search:
    Advertisement
Long-March Rocket Technology Meets International Standards
( 2003-05-31 13:57) (china.org.cn)

With the successful launch of the Beidou navigation and positioning satellite, the Long-March launchers have raised the success rate of this Chinese technology to 90 percent. Chinese aeronautical experts said the overall technology embodied in China's Long-March carrier rockets has already met international standards.

The successful launch of the Beidou navigation and positioning satellite has raised the success rate of the Long-March launchers to 90 percent from 89.8 percent. According to relevant statistics, the success rate of America’s Delta carrier rockets is 94 percent, the success rate of the European Ariane carrier rockets is 93 percent, and the Russian Proton carrier rockets, 90 percent.

Since the Long-March launcher put China’s first man-made satellite, Dongfanghong (Red East) 1, into orbit, the carrier rockets have successfully sent 52 different Chinese-made satellites, 27 foreign satellites and four Shenzhou space shuttles into space. Over the past 14 years, China’s astronautic technology has developed rapidly and continuously. The Long-March carrier rockets alone have made 50 launches. The 28 continuously successful launches of the Long-March carrier rockets since October 1996 show China’s astronautic technology capability.

From propulsion in normal to low temperature, from series connection rocket to carrier rocket, from launching satellite load to launching manned spaceship, Long-March launchers have passed many different technology experiences.

Now the Long-March family has 12 different kinds of rockets, and they are capable of launching spacecraft in different orbits.

According to experts, in order to raise the rockets’ competitive edge in the world launch market, scientists are actively researching and developing a new carrier rocket that is non-polluting, low cost, reliable, adaptable and secure.

   
Close  
  Go to Another Section  
     
 
 
     
  Article Tools  
     
  E-Mail This Article
Print Friendly Format
 
     
   
        .contact us |.about us
  Copyright By chinadaily.com.cn. All rights reserved  
武隆县| 纳雍县| 汝南县| 合江县| 普兰店市| 衡水市| 广宁县| 登封市| 乐东| 阿城市| 铁力市| 汉沽区| 武定县| 山东省| 伊吾县| 都昌县| 珠海市| 伊宁市| 都匀市| 上思县| 长海县| 汽车| 开平市| 海盐县| 会同县| 搜索| 乌拉特前旗| 苏尼特右旗| 焉耆| 双峰县| 虎林市| 昌图县| 安吉县| 黄骅市| 辽宁省| 常德市| 兴文县| 马鞍山市| 福建省| 阿拉善盟| 自贡市|