For example, if a rover on Mars needs to send data to Earth, it would first need to store the data until it was within range of an orbiting satellite.
如果有个漫游机器人在火星表面有信息传回地球，机器人会先将数据保存起来，等到卫星绕到了可以接收信号的轨道范围再发送出去；
The satellite was deactivated in 2005 as it ran out of fuel and was left orbiting Earth like a big piece of space junk.
这颗卫星于2005年由于燃油耗尽报废，并像一大块宇宙垃圾一样被扔在了飞行轨道上。
Explanation: A symphony of planet-wide observations began abruptly on March 28 when the Earth-orbiting Swift satellite detected a burst of high-frequency gamma-rays from GRB 110328A.
解说：一场世界规模的观察交响曲在3 月28 日突然开始了，当时环绕地球的Swift卫星监测到了来自GRB 110328A 的高频伽马射线爆发。
A collector on Earth that was picking up power from a geostationary satellite orbiting at an altitude of 35,800km would need to be spread over hundreds of square metres.
接收35，800公里外的地球同步卫星传送的能源所需的地面收集器需覆盖数百平方米。
低地球轨道卫星LEO ？
In order to transmit an event such as the Olympics via satellite, television signals are first changed into radio waves, which are then sent from a station on earth to a orbiting satellite.
为了能通过卫星传送像奥运会这样的比赛项目，电视信号要先转换成无线电波，然后从某个地面发射站把无线电波送上轨道卫星。
All of us have seen a satellite orbiting the earth on TV, it is a common animation used in movies, films and commercials.
们大家都看到了电视卫星运动地球轨道上，它是一种常见的的动画电影，电影及广告中使用。
The satellite is orbiting round the earth.
这颗卫星正围绕着地球运行。
In April 2007, China launched the first medium earth orbiting satellite that belongs to their Compass system.
2007年4月，中国发射了属于其北斗一号系统的首颗地球中轨道卫星。
In April 2007, China launched the first medium earth orbiting satellite that belongs to their Compass system.
2007年4月，中国发射了属于其北斗一号系统的首颗地球中轨道卫星。
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