gravitational force meaning in English

地球引力
重力；引力

Inertial forces and gravitational forces are indistinguishable .
惯性力与引力是不可区分的。
Under the action of universal gravitational forces the small perturbations will grow .
在万有引力的作用下，小扰动会加强。
Each mass is subject to two forces, namely the tension of the string and the gravitational force .
每一个物体受到两个力，即细绳的张力和重力作用。
Let us trace out in greater detail this computation of acceleration due to gravitational forces .
让我们详细追查这些由重力所引起的加速度的计算方法。
Newton's problem was to express in mathematical terms the gravitational force between different bodies .
牛顿的目标是要用数学形式来表示不同物体之间的引力。

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