China puts new navigation satellite into orbit |
文章来源： 文章作者： 发布时间：2007-02-05 00:49 字体： [ 大 中 小] 进入论坛 |
(单词翻译:双击或拖选)
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| The carrier rocket Long March 3-A blasts off from the Xichang Satellite Launch Center in southwest China's Sichuan Province, Feb. 3, 2007. |
| XICHANG, Sichuan, Feb.3 - 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 accurately2 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, prospecting3, 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 fully1 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, petroleum4 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 longitude5, latitude6 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 Aerospace7 Science and Technology Corporation.
The launch represents the 95th flight of China's Long March series of rockets.
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点击  收听单词发音
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1
fully
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| adv.完全地，全部地，彻底地；充分地 |
参考例句： |
- The doctor asked me to breathe in,then to breathe out fully.医生让我先吸气，然后全部呼出。
- They soon became fully integrated into the local community.他们很快就完全融入了当地人的圈子。
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2
accurately
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| adv.准确地，精确地 |
参考例句： |
- It is hard to hit the ball accurately.准确地击中球很难。
- Now scientists can forecast the weather accurately.现在科学家们能准确地预报天气。
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3
prospecting
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| n.探矿 |
参考例句： |
- The prospecting team ploughed their way through the snow. 探险队排雪前进。
- The prospecting team has traversed the length and breadth of the land. 勘探队踏遍了祖国的山山水水。
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4
petroleum
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| n.原油，石油 |
参考例句： |
- The Government of Iran advanced the price of petroleum last week.上星期伊朗政府提高了石油价格。
- The purpose of oil refinery is to refine crude petroleum.炼油厂的主要工作是提炼原油。
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5
longitude
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| n.经线，经度 |
参考例句： |
- The city is at longitude 21°east.这个城市位于东经21度。
- He noted the latitude and longitude,then made a mark on the admiralty chart.他记下纬度和经度，然后在航海图上做了个标记。
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6
latitude
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| n.纬度，行动或言论的自由(范围)，(pl.)地区 |
参考例句： |
- The latitude of the island is 20 degrees south.该岛的纬度是南纬20度。
- The two cities are at approximately the same latitude.这两个城市差不多位于同一纬度上。
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7
aerospace
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| adj.航空的，宇宙航行的 |
参考例句： |
- The world's entire aerospace industry is feeling the chill winds of recession.全世界的航空航天工业都感受到了经济衰退的寒意。
- Edward Murphy was an aerospace engineer for the US Army.爱德华·墨菲是一名美军的航宇工程师。
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