Changzheng carrier rockets can send various types of spacesh

时间：2007-06-04 00:12:59

（单词翻译:单击）

Chinanews, Xichang, June 2 – The Changzheng series of carrier rockets accomplished1 its 100th successful launch at the Xichang Satellite Launching Center on Friday, when the Changzheng 3A sent the SinoSat-3 telecommunication2 satellite into space.

 

Chinese aeronautics3 experts say that the Changzhen series of carrier rockets can be divided into four major types with 12 models. The Changzheng series of carrier rockets can send various types of satellites into different kinds of orbits. The 100th successful launching indicates that China has developed the Changzheng series into a highly competitive technological4 product in the world.

 

On April 24, 1970, Changzheng No.1 carrier rocket successfully sent Dongfanghong No.1 into space for the first time in history. Since then, Changzheng carrier rockets have gradually been developed into highly sophisticated products. They developed from conventional propulsion system to cooling propulsion system. At first, the rocket could send only one satellite. Later, it could carry multiple satellites at a time. It can now send spacecraft into the sky in addition to satellites. Right now, Changzheng series has four major types, Changzheng No.1, Changzheng No.2, Changzhen No. 3 and Changzheng No.4.

 

Changzheng series has created several records in history: it had successfully sent China’s first man-made satellite, China’s first retrievable5 satellite, China’s first telecommunication satellite, and China’s first manned spaceship. It has also successfully sent commercial satellites into space for some foreign companies. Right now, it has taken a share in the international commercial satellite launching service market.

 
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1 accomplished UzwztZ     
adj.有才艺的；有造诣的；达到了的
参考例句：
  • Thanks to your help,we accomplished the task ahead of schedule.亏得你们帮忙,我们才提前完成了任务。
  • Removal of excess heat is accomplished by means of a radiator.通过散热器完成多余热量的排出。
2 telecommunication 5gMzg5     
n.电信，远距离通信
参考例句：
  • Telecommunication is an industry of service.电信业是一个服务型的行业。
  • I only care about the telecommunication quality and the charge.我只关心通信质量和资费两个方面。
3 aeronautics BKVyg     
n.航空术，航空学
参考例句：
  • National Aeronautics and Space undertakings have made great progress.国家的航空航天事业有了很大的发展。
  • He devoted every spare moment to aeronautics.他把他所有多余的时间用在航空学上。
4 technological gqiwY     
adj.技术的；工艺的
参考例句：
  • A successful company must keep up with the pace of technological change.一家成功的公司必须得跟上技术变革的步伐。
  • Today,the pace of life is increasing with technological advancements.当今， 随着科技进步，生活节奏不断增快。
5 retrievable fjezxc     
adj.可取回的，可恢复的，可修补的
参考例句：
  • A key tool of drilling multilateral horizontal well is retrievable whip stock.钻多分枝水平井的关键工具是可回收式斜向器。
  • Chinese have long recognized the importance of retrievable reconnaissance satellites.中国很早就认识到返回式侦察卫星的重要性。

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