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单词 gravitational mass
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原声例句
VOA Special 2022年11月合集

The newly discovered gravitational mass was identified by observing the motion of its orbiting star.

新发现的黑洞的引力质量是通过观测其伴星的运动来确定的。

万物简史

Something else conjectured by Newton in the Principia was that a plumb bob hung near a mountain would incline very slightly toward the mountain, affected by the mountain's gravitational mass as well as by the Earth's.

牛顿在《原理》中作的另一个推测是:一根挂在大山附近的铅锤线,会受到大山和地球引力质量的影响,稍稍向着大山倾斜。

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