When you analyze this light, you can figure out their distance from the Earth, and identify what they are made of, determine their chemical composition.

当你分析这些光的时候，你可以计算出它们与地球的距离，并确定它们由什么构成，查明它们的化学成分。

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And out of this information you get the radius, the velocity and the period, assuming that you are on Earth in the plane of the orbit of the stars.

除了这个，还能得到半径的大小，速度以及周期，假设你在地球上，和这些恒星环绕的，轨道同处一个平面。

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The tunes in this musical drama are mostly Indian, but they have been dragged out of their classic dignity; that which soared in the sky was taught to run on the earth.

这部音乐剧③的曲调，极大部分是印度的，但已使它从古典高雅中解放出来；使行空的天马，学会了在地上奔跑。

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"I believe that this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the moon and returning him safely to the Earth.

VOA: special.2009.07.08

"I believe that this nation should commit itself to achieving the goal before this decade is out of landing a man on the moon and returning him safely to Earth,"

VOA: standard.2009.07.16

One day this information could be used to help move an asteroid out of an Earth-impacting orbit.

CNN: Meteor shows why it is crucial to keep an eye on the sky

Ally, with her hand on the lever, about to open the car door, was thinking that nothing on earth was strong enough to pull this ugly secret out of her, least of all a woman who thought it mattered if her stupid novel had died.

NEWYORKER: She��s the One

This is the monster: the highest volcano on Earth, rising out of the grey moonscape of the Atacama Desert.

BBC: How to climb a South American volcano