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VOA慢速英语(翻译+字幕+讲解):SpaceX将打造导弹跟踪卫星

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SpaceX to Build Missile-Tracking Satellites
SpaceX has been chosen by the U.S. Defense Department to build missile-tracking satellites.
The $149 million contract, or legal agreement, was announced by the U.S. Space Development Agency (SDA) this week. The SDA is an agency under the Department of Defense.
It is the first time SpaceX has won a government contract to build satellites. The American aerospace company is best known for its rockets.
In May, SpaceX made history by launching two astronauts into space aboard a rocket and spacecraft the company built and operated for NASA.
SpaceX has increased its satellite production in recent years for its Starlink network. Starlink is a group of satellites - deployed to low-Earth orbit - designed to send internet signals across the world.
SpaceX chief Elon Musk has said he hopes Starlink will make enough money to help pay for the company's space travel goals.
Under the contract, SpaceX will use its Starlink plant in Redmond, Washington, to build four satellites. The satellites will have a special missile-tracking sensor supplied by another company, an SDA official said.
The SDA also awarded a $193 million contract to technology company L3 Harris Technologies Inc. to build four additional satellites.
Both companies are expected to have the satellites ready for launch by fall 2022.
The awards represent the start of SDA's plan to develop a system of satellites in low-Earth orbit to detect and follow missiles, such as intercontinental ballistic missiles (ICBMs). ICBMs can travel long distances and are difficult to follow and intercept, or stop.
In 2019, SpaceX won a $28 million contract from the U.S. Air Force. The contract permits the Air Force to use the Starlink satellite network to test encrypted internet services on military planes.
The Air Force has not ordered any Starlink satellites of its own.
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重点单词   查看全部解释    
contract ['kɔntrækt,kən'trækt]

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n. 合同,契约,婚约,合约
v. 订合同,缩

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military ['militəri]

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adj. 军事的
n. 军队

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widespread ['waidspred]

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adj. 分布(或散布)广的,普遍的

 
network ['netwə:k]

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n. 网络,网状物,网状系统
vt. (

 
revolution [.revə'lu:ʃən]

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n. 革命,旋转,转数

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spacecraft ['speiskrɑ:ft]

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n. 宇宙飞船

 
legal ['li:gəl]

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adj. 法律的,合法的,法定的

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additional [ə'diʃənl]

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adj. 附加的,另外的

 
defense [di'fens]

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n. 防卫,防卫物,辩护
vt. 防守

 
announced [ə'naunst]

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宣布的

 
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