手机APP下载

您现在的位置: 首页 > 在线广播 > NEWS Plus慢速英语 > 正文

NEWS Plus慢速英语:美国新一代中继通信卫星成功发射

来源:可可英语 编辑:Aimee   可可英语APP下载 |  可可官方微信:ikekenet
 下载MP3到电脑  批量下载MP3和LRC到手机
加载中..
QN^^t41_Xs@UAS

MLvI8G6i!wn

NASA's super-high-flying fleet of communication satellites just got bigger.
An unmanned rocket blasted into a chilly, clear night sky on January 23 carrying the latest, third-generation Tracking and Data Relay Satellite.
NASA uses these satellites to support the International Space Station and Hubble Space Telescope, among other craft.
The network is 22,300 miles high, at various locations above the equator, and allows continuous two-way contact with the space station and its six inhabitants.
The Tracking and Data Relay Satellite system is so vital that it's considered a U.S. national asset.

+8ZgtMLJn0

美国新一代中继通信卫星成功发射.jpg

;WFL%)MY-D

Badri Younes, NASA's deputy associate administrator for space communications and navigation, says a modern-day human space program would be difficult, if not impossible, without the constant coverage provided by the satellites.
Each satellite has a pair of dish antennas 15 feet in diameter.
This newest 350 million-US dollar satellite will work its way up from a temporarily low orbit. It will check out in orbit, by late spring.
NASA launched its first Tracking and Data Relay Satellite in 1983 aboard a space shuttle. The previous satellite, TDRS-11, soared in January last year.
The next in the series, TDRS-M, will be launched sometime in the early 2020s.

2DtYLUj[QbdJEAz[74z0

,rbRu4upreexj!QJ1q5r

.]M2HdQ_aU_p4;CXuS0TT](YrFFwyNOotd1y~lT#S1Y4Vq

重点单词   查看全部解释    
communication [kə.mju:ni'keiʃn]

想一想再看

n. 沟通,交流,通讯,传达,通信

 
check [tʃek]

想一想再看

n. 检查,支票,账单,制止,阻止物,检验标准,方格图案

联想记忆
network ['netwə:k]

想一想再看

n. 网络,网状物,网状系统
vt. (

 
previous ['pri:vjəs]

想一想再看

adj. 在 ... 之前,先,前,以前的

联想记忆
administrator [əd'ministreitə]

想一想再看

n. 管理人,行政官

 
recruit [ri'kru:t]

想一想再看

v. 招募,征兵,吸收(新成员),补充
n.

联想记忆
constant ['kɔnstənt]

想一想再看

adj. 经常的,不变的
n. 常数,恒量

联想记忆
conversation [.kɔnvə'seiʃən]

想一想再看

n. 会话,谈话

联想记忆
temporarily ['tempərerili]

想一想再看

adv. 暂时地,临时地

 
causality [kɔ:'zæləti]

想一想再看

n. 因果关系

 

发布评论我来说2句

    最新文章

    可可英语官方微信(微信号:ikekenet)

    每天向大家推送短小精悍的英语学习资料.

    添加方式1.扫描上方可可官方微信二维码。
    添加方式2.搜索微信号ikekenet添加即可。