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We sent an unmanned rocket into earth orbit. 我们把一个无人驾驶的火箭送入了地球的轨道里。
One year is one Earth orbit around the Sun. 一年就是地球绕太阳一周的时间。
Nine astronauts, in relays of three, worked in the Skylab earth orbiting space station from May 1973 to February 1974. 九名航天员以三人一班制轮班工作，从1973午5月在美国环绕地球的太空站实验室做到1974年2月。
International Space Station in near Earth orbit, NASA astronauts carried out space walks and lost a bolt and a watcher. 在国际空间站接近地球轨道的地方;NASA的宇航员完成了太空行走;迷失了一个螺钉和一个观测仪.
NASA should stop travelling to the International Space Station in particular and to “low Earth orbit” in general. 国家宇航局尤其要停止飞往国际太空站，一般的“近地轨道”飞行也要停止。
Recorded last June from the International Space Station, the Sun's limb still peeks above the distant horizon as seen from Earth orbit. 为了庆祝春秋分，我们呈献了这张彩色的落日景观。
The Soviet Union put the first satellite into Earth orbit. 苏联发射了第一颗人造卫星进入地球轨道。
Vicarious Calibration of an Ocean Salinity Radiometer from Low Earth Orbit. 地球低轨道海洋盐分辐射表的替代校准。
The first two Rangers, launched in 1961, never got out of earth orbit. 最初的两艘游骑兵太空船，在1961年发射，始终没有脱离地球轨道。
The Soyuz TMA-9 capsule took off less than a day after the US space shuttle Atlantis pulled away from the orbiting station and began its journey Earthward. 在联盟TMA 9号飞船发射升空不到一天前,美国阿特兰蒂斯号航天飞机已与轨道空间站脱离,开始向地球飞行。
The two satellites were placed respectively in LEO (low earth orbit) and geostationary transfer orbit. 两颗卫星分别进入近地轨道和地球同步转移轨道。
The earth orbits the sun once every 365.25 days. 地球每365.;25天绕太阳轨道一圈。
A rocket belonging to India's space agency lifted off from the Sriharikota space station in Andhra Pradesh early Monday, putting a cluster of ten satellites into earth orbit within minutes. 星期一早上，印度宇航局的一枚火箭从安得拉邦的斯里赫里戈达航天发射场发射升空，在几分钟之内把搭载的十颗卫星送入地球运行轨道。
The Augustine report now makes it more likely the government will dispense with NASA's services entirely in low Earth orbit and ask private firms to deliver crew to the station, as well as cargo. 从奥古斯汀报告来看，政府将完全放弃国家宇航局在近地轨道提供的服务，而要求私人公司运送人员和货物至空间站。
The ability to do what is also called "extra-vehicular activity" is essential for China's long-term goals of an orbiting station in the next decade and possibly a visit to the moon, Reuters reported. 美联社还提到，中国的航天项目绝大多数依靠国产技术，与俄罗斯的合作十分有限。
Periapsis in Earth orbit,the point in its orbit where a satellite is nearest to the Earth. 以地球为中心的最近点，人造卫星轨道上离地球中心最近的点。
The earth orbits the sun once every 3 6 5 . 2 5 days . 地球每365。25天绕太阳轨道一周。
Key words: CO2, Earth orbital parameters, LGM, China climate. 关键词：双多普勒雷达，飑线，三维风场，强对流带。
This time will employ manual control method by the astronauts working in the orbital station to achieve docking from the orbital station. 这一次将采用由在轨道站上工作的宇航员从轨道站上进行人工控制实现对接的方式。
Within weeks, the Soviets launched another satellite into Earth orbit, Sputnik Two. 仅在几个星期内，苏联就发射了第二颗卫星??史泼尼克2号??进入地球轨道。