单词：orbiting radio beacon ionospheric satellite
单词：orbiting radio beacon ionospheric satellite 相关文章
LESSoN EIGHT TEXT Telecommunication via Satellite At the beginning of the twentieth century, there were four powerful means of transmitting and receiving information over long distances: print, photog
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Weather Predictions Expected to Improve with New U.S. Satellite 美国新卫星有望改善天气预报 A new American weather satellite could save more lives by better predicting extreme weather conditions. 一颗新的美国气象卫星能够通过更
2016年VOA慢速英语(十一)月
By Greg Flakus Washington, DC 07 September 2006 watch Spanish Radio report Since Hurricane Katrina struck New Orleans a year ago, the Hispanic population of that city and surrounding communities has grown dramatically. One beneficiary of the growth
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The amount of debris orbiting the Earth has reached a tipping point for collisions, which would in turn generate more of the debris that threatens astronauts and satellites, according to a US study released on Thursday。 NASA needs a new strategic p
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Galaxy 银河美国电视中继卫星 Galileo 伽利略美国木星探测器 Gals 航向前苏联国内军政通信卫星 Gambit 策略美国照相侦察卫星 Gamma 伽玛前苏联伽玛射线天文卫星
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Badar-A 巴达Ａ巴西通信试验卫星 Balloon 气球美国军事卫星 BCTS(Broadcast Communication Technology Sat.) 广播通信技术卫星日本广播通信卫星 Beacon 灯塔美国测地卫星
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