名词
中文翻译：Unknown
同义词：
['gravitational force', 'gravity effect']
例句：
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1. The weight of the object is due to its gravitational force.
物体的重量是由于它的重力作用。
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2. Gravity affects the movement of objects in space.
重力影响物体在空间的运动。
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3. The scientist studied the effects of gravity on the planet's rotation.
科学家研究了重力对行星自转的影响。