NASA is also looking beyond the ISS, beyond low Earth orbit, to more distant destinations in space. 美国航天局还在寻找超越国际空间站、超越地球低轨道以外的更遥远的太空目的地。
Atomic oxygen in a low earth orbit is very active in chemical reactions, and it can oxidate copper. 低地球轨道(LEO)的原子氧化学性能非常活泼,能使金属铜氧化。
The ISS, a habitable, artificial satellite in low Earth orbit, is the11th space station launched into orbit by humanity. ISS是一个位于近地轨道的、可居住的人造卫星。它是第11个人类发射进宇宙轨道的空间站。
The new plan encourages firms to compete to provide transport to low Earth orbit ( LEO ). 新计划鼓励私人公司通过竞争来提供近地轨道的运输服务。
The panel favored a new strategy for NASA in which returning to the moon would be just one possible element of a broader capacity to launch astronauts beyond low earth orbit. 这个小组青睐NASA的一种新的方略,其中,返回月球只是将宇航员发射到低地球轨道(LEO)之外的更宽广能力的一个可能的元素。