日批在线视频_内射毛片内射国产夫妻_亚洲三级小视频_在线观看亚洲大片短视频_女性向h片资源在线观看_亚洲最大网

CHINA> Photo
New space tracking ship to serve Shenzhou VII
(Xinhua)
Updated: 2008-04-13 08:57


Yuanwang 6, a space tracking ship, is delivered for service in Shanghai April 12, 2008. The ship will help serve the Shenzhou VII spacewalk mission scheduled for autumn. [Xinhua]

SHANGHAI -- China launched a new space tracking ship on Saturday, expected to serve the Shenzhou VII spacewalk mission scheduled for autumn, said a spokesman of the maritime space surveying and controlling operation.

The new space tracking ship was the sister ship of the Yuanwang-5, which was put into use in September, said the spokesman, adding the two vessels would play a key role in the Shenzhou VII mission.

The new ship, with a full load displacement tonnage of 25,000, started construction in April 2006 with adopted advanced technologies in the fields of space, maritime, meteorology, electronic, mechanics, optics, telecom and computer sciences.

The ship can resist wind above level 12 and cruise in any sea areas in the latitude belt between 60 degrees north and 60 degrees south.

It had an information superhighway platform built via optical fibers, on which various systems could expand their functions and share information so as to promptly root out malfunction, the spokesman said.

He said the ship was "sailor-friendly" as a crew would feel more comfortable during their long stays at sea. Sailors could benefit from the technologies in reduced vibration and noise and a more advanced air-conditioning system.

"The sister ships will offer a strong support for China's large space missions and will further fuel the country's space development," the spokesman said.

Besides the new tracking ship, the maritime space surveying and controlling operation, initiated in 1978, boasted a fleet of five "Yuanwang" ships that had carried out 56 expeditions, extending more than 1.3 million sea mile in the Pacific, Atlantic and Indian oceans.

The "Yuanwang" ships were engaged in China's past six Shenzhou missions between 1999 and 2005, conducting surveying and controlling operations for spaceships' orbit transfer and maintenance, attitude adjustment and video and audio transmission.

The ships, having successfully conducted 65 surveying and controlling tasks, together with some 20 terrestrial surveying stations, constitute the country's space telemetry network, which is able to operate underwater and for international satellites and manned spacecraft, experts say.

The Shenzhou VII spacewalk mission was crucial to establishing a big space laboratory or station, which was therefore more challenging than the Shenzhou VI, said a mission scientist last month.

The Jiuquan Satellite Launch Center in northwest China is getting prepared for the launch.

 

 

主站蜘蛛池模板: 日韩精品在线观看免费 | 国产一区二区三区自拍 | 淫语对白| 午夜国产一区 | 久久婷婷成人综合色 | 国产视频在线观看免费 | 一二三四国产 | 黄色大片在线播放 | 黄色一级片欧美 | 国产精品麻豆免费版 | 国产精品四虎 | 激情视频久久 | 国产第一页在线 | 在线观看成人免费 | 9.1成人免费看片 | 伊人超碰 | 亚洲20p| www婷婷| 香蕉视频官网 | 国产亚洲在线观看 | av男人天堂网 | av男人的天堂网 | 欧美影院 | 国产夫绿帽单男3p精品视频 | 久久99精品久久久久久国产越南 | jizz亚洲少妇| 欧美撸撸 | 国产精品美女www爽爽爽视频 | 97在线视频免费 | 日韩一区二区在线播放 | 中文字幕第一页在线 | 亚洲天堂视频网 | 国产探花一区 | 殴美一级特黄aaaaaa | 麻豆精品国产免费 | 日本高清视频免费看 | 欧日韩不卡视频 | 亚洲ww| 天干夜天干天天天爽视频 | 色婷婷国产精品久久包臀 | 五月婷婷深深爱 |