不同的天气和天文条件必须恰到好处，才能产生月虹。
Different weather and astronomical conditions have to be just right for moonbows to be created.
并指出唐山大震的发生时间可能与当天的天文条件有关。
Finally, it is suggested that the occurrence time of Tangshan earthquake was probably associated with the current astronomic conditions.
由于具备最理想的天文观察条件，月球将建设成太阳系最重要的天文观察平台。
With perfect observing conditions, the Moon will be the principal astronomical observation platform in the solar system.
用它，美国宇航局带头创建了太空站，在那里人类已经学会在微重力条件下生存数月，并做生物医学和天文学研究。
With it, NASA took the lead in creating the space station, where humans have learned how to survive for months in micro-gravity and do biomedical and astronomical research.
在一项调查中，哲学家的工作条件超过了像航空航天工程和天文学等声名卓著的领域。
In one survey, working conditions for philosophers outranked some other prestigious fields like aerospace engineering and astronomy.
所以，理解它们形成的结构将帮助天文学家在更多细节上理解这些摄动，以及形成他们所需的物理条件。
As such, understanding the structures they formed will help astronomers to understand these perturbations in greater detail and, in turn, what physics would be necessary to achieve them.
其中天文导航是最早被人们利用的一种导航方法，但这种方法存在受自然条件、天气、时间制约、精度低等缺点。
Astronomic navigation is the earliest one people used, which has the default of low precision and constrained by natural condition, weather and time.
天文学家借助于这项发现，还能在太阳系外发现更多的行星，系外行星可能“复制”了产生地球上生命的条件。
The discovery suggests that at least one third of stars similar to our own Sun host these difficult-to-detect celestial bodies, multiplying previous estimates by five.
本周三，日本发射一颗新一代X射线天文卫星，旨在揭示宇宙结构与太空中极端条件下的物理现象。
Japan on Wednesday launched a new generation X-ray astronomy satellite aiming to reveal the structure of the universe and physics at extreme conditions in space.
本周三，日本发射一颗新一代X射线天文卫星，旨在揭示宇宙结构与太空中极端条件下的物理现象。
Japan on Wednesday launched a new generation X-ray astronomy satellite aiming to reveal the structure of the universe and physics at extreme conditions in space.
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