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- Inertial Mass in Earth Orbit 地球轨道中的惯性物质
- Mass in Earth Orbit 地球轨道上的质量
- 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。
- Orion will dock with the lunar module in Earth orbit, and the Earth departure stage will propel both to the moon. 猎户座"飞船将与低地球轨道上的登月舱对接，由地球出发站将两者送往月球。
- Together in Earth orbit, the spacefaring combination was momentarily the third brightest sky light in view. 与地球轨道同步，太空上的联合体暂时成为了天空中第三亮的天体。
- The rocket stage was marooned in Earth orbit after a failed communication satellite launch almost a year ago on February 28, 2006. 这截火箭自2006年2月28日的通讯卫星发射失败后，就困在地球轨道上。这次爆炸的大部份碎片皆能被追踪。
- Next came three flights to test rendezvous between the manned spacecraft and the unmanned lunar landing craft in Earth orbit, culminating with the crew transferring from one to the other. 后来的三次是测试载人飞船与绕地飞行的不载人登月飞船的会合，计划的高潮是宇航员从一个飞船转移到另一个飞船。
- The priest celebrates Mass in church. 神父在教堂内举行弥撒。
- It is difficult to exhaust much mass in this form! 要使这种形式的喷出物质量很大是有困难的。
- 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。
- The priest celebrated High Mass in church. 神父在教堂中举行大弥撒。
- He often harangued the mass in the factories. 他常在工厂向民众作长篇演讲。
- There is a lump or mass in the breast. 乳腺有肿物或肿块。
- One year is one Earth orbit around the Sun. 一年就是地球绕太阳一周的时间。
- The hill appeared as a black mass in the distance. 远远地看去，那座山是黑魆魆一片。
- The apology came during a Mass in Sydney. 他的道歉是在悉尼的一场弥撒中说的。
- Robot to study hole in Earth's crust. 机器人探秘地球大洞。
- Rolled round in earth's diurnal course. 照着地球自转的轨道而滚动。
- Inertial mass can be defined only in terms of certain mechanical measurements whose success hinges on Newton's law of motion. 只有用某些力学上测量，才能给惯性质量作出定义，而这些力学上的测量的成就是随牛顿运动定律而定的。
- GS: Tell us about the resources in Earth 2160. 给我们透露一些《地球2160》里资源方面的事情吧。
