空间站将成为我们在地球大气层以外的第一个永久性居留地。
The space station will become our first permanent settlement beyond Earth's atmosphere.
目前为止，美宇航局还没有开发出具有足够动力的火箭，这种火箭需要能在地球大气层以外驱动宇宙飞船飞行。
NASA has not yet developed a rocket powerful enough to propel this spacecraft out of Earth's atmosphere.
斯温说，在太阳系以外，只有四个行星的大气层被光谱分光镜技术(一个化学分析技术)仔细观察和研究，还有32个曾被观察到。
Swain says just four extrasolar planets' atmospheres have been studied in detail with spectroscopy, a chemical analysis technique. Another 32 or so have been observed.
要探测到更短的波长，天文学家们就必须把仪器送到地球大气层以外去。
To detect shorter wavelengths, astronomers must put instruments above the earth 's atmosphere.
泰坦，土星最大的月亮，有稠密的含氮大气层，并且是地球以外在其表面上含有稳定液池的唯一地方。
Titan, Saturn's largest moon, has a dense nitrogenous atmosphere and is the only place, other than earth, containing stable pools of liquid on its surface.
泰坦，土星最大的月亮，有稠密的含氮大气层，并且是地球以外在其表面上含有稳定液池的唯一地方。
Titan, Saturn's largest moon, has a dense nitrogenous atmosphere and is the only place, other than earth, containing stable pools of liquid on its surface.
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