日韩精品久久一区二区三区_亚洲色图p_亚洲综合在线最大成人_国产中出在线观看_日韩免费_亚洲综合在线一区

   

China puts new navigation satellite into orbit

(Xinhua)
Updated: 2007-02-03 09:57

XICHANG, Sichuan - China successfully put a navigation satellite into orbit early Saturday from the Xichang Satellite Launch Center in southwest China's Sichuan Province.

The carrier rocket, Long March 3-A, blasted off at 0:28 a.m. ( Beijing Time). The satellite separated from the rocket about 24 minutes later.

Data from the Xi'an satellite monitoring center showed that the satellite had accurately entered its orbit.

It is China's fourth Beidou (Big Dipper) navigation experimental satellite in orbit. The previous three were sent in space on Oct. 31, 2000, Dec. 21, 2000 and May 25, 2003 respectively.

Experts said the Beidou satellite navigation experimental system is operating well and has played a significant role in cartography, telecommunications, water conservation, transportation, fishery, prospecting, forest fire monitoring and national security.

The fourth Beidou navigation satellite, serving as a backup satellite for the Beidou satellite navigation experimental system, may replace the first Beidou satellite, when necessary, continuing to provide all-weather and all-day navigation and positioning information.

Experts said China is establishing the Compass Navigation Satellite System on the basis of the Beidou satellite navigation experimental system. The compass system will in 2008 fully meet the demand of satellite navigation for clients in China and neighboring regions.

The Compass Navigation Satellite System will gradually extend to be a global satellite navigation and positioning system after network building and experiments, experts said.

The compass system will be mainly used for economic purposes, providing efficient navigation and positioning services in transportation, meteorology, petroleum prospecting, forest fire monitoring, disaster forecast, telecommunications and public security, among others.

China is one of the several countries in the world capable of developing such a system on its own.

The system can help clients know their location at any time and place with accurate longitude, latitude and altitude data.

The satellite and carrier rocket were developed respectively by the China Academy of Space Technology and China Academy of Launch Vehicle Technology, which are under the China Aerospace Science and Technology Corporation.

The launch represents the 95th flight of China's Long March series of rockets.



Top China News  
Today's Top News  
Most Commented/Read Stories in 48 Hours
主站蜘蛛池模板: 一级电影免费 | 欧美日韩精品一区二区三区蜜桃 | 色洛色中文综合网站 | 亚洲午夜在线 | 久久国产亚洲观看 | 一级片 在线播放 | 精品一区二区三区网站 | 久久精品亚洲欧美日韩精品中文字幕 | 欧美2区 | 免费观看黄的小视频 | 欧美久久久久久 | 欧美高清国产 | 亚洲天堂久久精品成人 | 在线天堂中文在线资源网 | 欧美日韩免费在线观看 | 欧美成人免费高清二区三区 | 久久综合九色综合欧美狠狠 | 亚洲一级毛片免费看 | 性夜影院爽黄a爽在线看香蕉 | 狠狠干伊人| 日韩在线观看中文字幕 | www.99re| 欧美一级欧美三级在线观看 | 久久免费国产视频 | 日韩黄色大全 | 美国黄色网址 | 色吧首页dvd| 中文字幕在线电影观看 | 成人精品国产 | 亚洲一区二区三区四区五区中文 | 国产成人精品视频频 | 黄色片快播| 91在线视频播放 | 亚洲午夜精品国产电影在线观看 | 色qing网站 | 免费国产小视频在线观看 | 亚洲欧美日韩另类精品一区二区三区 | 免费一级视频在线观看 | 韩国美女激情视频一区二区 | 狠狠五月深爱婷婷网免费 | 欧美精品九九99久久在观看 |