www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

 
  .contact us |.about us

Highlights ... ...
Search:
    Advertisement
China Develops New Generation of Large Carrier Rocket
( 2003-04-07 14:06) (china.org.cn)

China has started to go in for the research and development of a new generation carrier-rocket of the Long-march series, which is of the world sophisticated level, highly reliable, of low cost and non-pollution yet of huge propelling power, said Long Lehao, a carrier-rocket expert on Apr. 3 in Beijing. This is to meet the needs for the launching of such space exploration equipment as large-sized satellite, lunar-surveying installation and so on.

Chinese scientists have already started a series of demonstration for the carrier rocket series and the storm at the key technologies, said Long Lehao, Director of the Sci-tech Commission with the China Research Institute for Carrier-rocket Technology and Chief commander of Long-march 3a series when he was having a special interview with the reporter. The two types of engines required for the research and development of the project have been approved by the state for filing.

"We have mastered by and large the key technologies in the research and development of the new generation carrier rockets," said the hoary-hair academician of the CAS of over 60 years old. "If the state makes the project filed for the new generation of carrier-rocket series next year it is possible to score a success in its research and development within a span of five to six years and be brought into the launching market in 2010 at the latest."

He said, the new generation of carrier-rocket in the shaping consists of 14 types. The main feature of them: the carrying capacity on a low-orbit is of 1.2 to 25 tons while that on a higher orbit being 1.8 to 14 tons. By making full use of the technologies of the Long-march serial rockets it is better linked up with the future for repeatedly usable carriers and by adopting the non-toxic, non-pollution kerosene and liquefied hydrogen and oxygen propellant.

Long Lehao said, to research and develop the new generation of Long-march carrier rocket is conducive to diminishing the differences between China and developed countries in the carrier-rocket technology, further strengthening the competitiveness of China's carrier-rocket in the international launching market for commercial purposes. And in the meanwhile it is to meet the domestic needs, promote the development of China's space technology, thereby scoring a great significance in raising the capability for space exploration.

The White Paper on China's Spaceflight published by the Chinese government in 2000 had basically defined the objective for lunar exploration. "If China wants to send its spacemen onto the moon and take them back, the carrying capability of the present carrier-rocket falls short of fulfilling the job and now what we can do is only to do the unmanned probing," said Academician Long.

He said that Europe, Japan and the US would have a batch of new carrier-rockets to be put into the market in the coming 10 years. They are featured with large-diameter, huge propelling power, high reliability, and non-pollution and of easy operation. China's carrier-rocket has to follow the trend by eliminating those of using toxic and polluting chemical propellants while adopting the non-toxic, non-pollution kerosene and liquefied hydrogen and oxygen propellants. And in this way it is to strengthen the carrying capacity and reliability of the carrier-rockets and maintaining and enhancing China's status as a big country in the field of spaceflight.

He also suggests that a new launching ground is going to be put up in Hainan Province for the launching of the new generation of carrier-rockets. "The present launching grounds at Jiuquan, Xichang and Taiyuan are all built in the inland areas, revealing such short-comings as falling short of the safety for flying areas, and the failure of restriction by railway transportation of large-sized carrier-rockets and the loss of carrying capability due to the geographical location of the launching grounds in the high altitude zones."

He said that the rocket launching ground in Hainan Province is nearby the sea and it's easy to select the landing point for the rocket and the safety for the rocket flying area can thoroughly be solved. Besides, it is easy for international exchanges and cooperation and conducive to the establishment and development of commercialized pattern in the operation of launching services and it is also possible to solve the difficulty in which the rail transportation for large-diameter rockets is to be replaced by ocean shipping.

   
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  
主站蜘蛛池模板: 成人久久18免费游戏网站 | 精品欧美小视频在线观看 | 亚洲成av人影片在线观看 | 久久久久久久久免费影院 | 全黄a一级毛片 | 免费又黄又爽又猛大片午夜 | 亚洲天堂成人在线观看 | 国产大尺度福利视频在线观看 | 黄a在线观看 | 伊人热久久 | 国产精品欧美亚洲 | 亚洲国产一区在线精选 | 国产美女在线精品亚洲二区 | 天天澡天天碰天天狠伊人五月 | 日日狠狠久久偷偷四色综合免费 | 欧美在线视频观看 | 在线欧美一级毛片免费观看 | 久久久久女人精品毛片九一 | 草草影院第一页yycccom | 国产成人一区二区视频在线观看 | 在线观看日本亚洲一区 | 日韩欧美综合在线二区三区 | 黄色美女视频网站 | 国产精品一区二区久久精品涩爱 | 手机国产精品一区二区 | youjizzxxx69日本 | 国产成人久久精品麻豆二区 | 国产亚洲欧美视频 | 免费播放特黄特色毛片 | 久久最新免费视频 | 欧美一级片在线播放 | 国产一级在线观看视频 | 欧美6699在线视频免费 | 91久久网| 久久亚洲精品无码观看不卡 | 国产亚洲精品国产第一 | 亚洲手机在线 | 欧美5g影院天天爽天天看 | 国产三级精品播放 | 免费欧洲毛片a级视频 | 国产三级高清 |