China launches 2nd oceanic survey satellite_科学技术

China launches 2nd oceanic survey satellite

文章来源：文章作者：发布时间：2007-04-12 02:25 字体： [大中小]　进入论坛

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China launched its self-made "Haiyang-1B" oceanic survey satellite from the Taiyuan Satellite Launch Center in Shanxi Province at 11:27 am Wednesday, April 11, 2007.

Apr.11 - China successfully launched its second oceanic survey satellite "Haiyang-1B" (Ocean 1B) from Taiyuan Satellite Launching Center on Wednesday.

The China-made satellite was launched at 11:27 a.m. and reached the target orbit aboard a Long March-2C carrier rocket, China's most senior ocean research official said.

The "Haiyang-1B", a crucial component¹ of China's three dimensional oceanic survey system, would be used to monitor the color and temperature of the ocean, said Sun Zhihui, director of the State Oceanic Administration.

The satellite would aid China's development and utilization² of oceanic resources, construction of ports, monitoring and prevention of oceanic pollution, resource investigation³ and the development of coastal⁴ areas as well as for study of global environmental changes, he said.

China launched its first oceanic survey satellite "Haiyang-1A" in May 2002 to monitor ocean color and temperature using remote sensing technology

"Haiyang-1A" monitored the Bohai Sea, the Yellow Sea, the East China Sea and the South China Sea.

Chief scientist Bai Zhaoguang said the "Haiyang-1B" is an upgraded version of the earlier model.

"The operational life of 'Haiyang-1B' is expected to reach three years, a year longer than 'Haiyang-1A'. The new satellite provides three times as much information," he said.

"The satellite's observational devices now have a 3,000-kilometer range -- up from 1,300 kilometers -- and its imaging devices provide higher resolution photography," he added.

Haiyang-1B had a stronger structure than Haiyang-1A, enabling it to withstand stronger shocks and jolts⁵, he said.

Bai said the Haiyang-1B had software and Internet capabilities⁶ that allowed it to repair itself in space, saying 10 computers worked together to repair the spacecraft in the event of a technical breakdown⁷.

The breakdown of a solar cell driver shortened Haiyang-1A's operational life. But Haiyang-1B's improved technology would enable it to solve this kind of problem by itself, Bai said.

The "Haiyang-1A", China's first experimental satellite to use ocean color detecting, worked for 685 days from May 2002 to April 2004 with an operational life shorter than the designed lifespan of two years.

During its operation, it completed 1,830 surveys and provided oceanic information for 126 users including the oceanic administration, producers of oceanic products, research institutes and universities.

SOA director Sun Zhihui said China would develop five more oceanic satellites in the medium term, saying satellites were urgently needed to develop the country's marine⁸ economy, provide a marine early warning system and safeguard the nation's maritime⁹ rights.

"Haiyang-1B" is developed by the China Academy of Space Technology of China Aerospace¹⁰ Science and Technology Corp (CASTC). It was launched on the 96th flight of a Long March carrier rocket, which was developed by the China Academy of Launch Vehicle Technology of the CASTC.

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收听单词发音

1 component
n.组成部分，成分，元件；adj.组成的，合成的
参考例句：
Each component is carefully checked before assembly.每个零件在装配前都经过仔细检查。 Blade and handle are the component parts of a knife.刀身和刀柄是一把刀的组成部分。

2 utilization
n.利用，效用
参考例句：
Computer has found an increasingly wide utilization in all fields.电子计算机已越来越广泛地在各个领域得到应用。 Modern forms of agricultural utilization,have completely refuted this assumption.现代农业利用形式，完全驳倒了这种想象。

3 investigation
n.调查，调查研究
参考例句：
In an investigation,a new fact became known, which told against him.在调查中新发现了一件对他不利的事实。 He drew the conclusion by building on his own investigation.他根据自己的调查研究作出结论。

4 coastal
adj.海岸的，沿海的，沿岸的
参考例句：
The ocean waves are slowly eating away the coastal rocks.大海的波浪慢慢地侵蚀着岸边的岩石。 This country will fortify the coastal areas.该国将加强沿海地区的防御。

5 jolts
（使）摇动，（使）震惊( jolt的名词复数 )
参考例句：
He found that out when he got a few terrific jolts, but he wouldn't give up. 被狠狠地撞回来几次后，他发觉了这一点，但他决不因此罢休。 Some power bars are loaded with carbohydrates or caffeine for quick jolts. 有些能量条中包含大量的碳水化合物和咖啡因，以达到快速提神的效果。

6 capabilities
n.能力( capability的名词复数 )；可能；容量；[复数]潜在能力
参考例句：
He was somewhat pompous and had a high opinion of his own capabilities. 他有点自大，自视甚高。来自辞典例句 Some programmers use tabs to break complex product capabilities into smaller chunks. 一些程序员认为，标签可以将复杂的功能分为每个窗格一组简单的功能。来自About Face 3交互设计精髓

7 breakdown
n.垮，衰竭；损坏，故障，倒塌
参考例句：
She suffered a nervous breakdown.她患神经衰弱。 The plane had a breakdown in the air,but it was fortunately removed by the ace pilot.飞机在空中发生了故障，但幸运的是被王牌驾驶员排除了。

8 marine
adj.海的；海生的；航海的；海事的；n.水兵
参考例句：
Marine creatures are those which live in the sea. 海洋生物是生存在海里的生物。 When the war broke out,he volunteered for the Marine Corps.战争爆发时，他自愿参加了海军陆战队。

9 maritime
adj.海的，海事的，航海的，近海的，沿海的
参考例句：
Many maritime people are fishermen.许多居于海滨的人是渔夫。 The temperature change in winter is less in maritime areas.冬季沿海的温差较小。

10 aerospace
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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