名词中文翻译1
中文翻译：Unknown
同义词：
['center of gravity', 'center point']
例句：
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1. The ball is in the middle of the circle.
球在圆心。
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2. The weight of the object is its center of gravity.
物体的重量是其重心。
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3. The projectile will fall towards the center of gravity.
弹丸将向重心下落。