国产热热热精品,亚洲视频久久】日韩,三级婷婷在线久久,99人妻精品视频,精品九热人人肉肉在线,AV东京热一区二区,91po在线视频观看,久久激情宗合,青青草黄色手机视频

   

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.



Top China News  
Today's Top News  
Most Commented/Read Stories in 48 Hours
和林格尔县| 南阳市| 白玉县| 潼南县| 溆浦县| 五常市| 太保市| 凤凰县| 阜南县| 吉隆县| 武城县| 连山| 惠来县| 包头市| 旺苍县| 灵寿县| 竹溪县| 台东县| 北票市| 鹤庆县| 永和县| 商水县| 修文县| 湘西| 友谊县| 卫辉市| 都江堰市| 丰县| 信阳市| 革吉县| 华亭县| 屏东市| 罗城| 彩票| 秦皇岛市| 蒙阴县| 即墨市| 开平市| 江北区| 石渠县| 衡山县|