参考词典中gravitational attraction的常规释义：
基本释义
英英解释
- (physics) the force of attraction between all masses in the universe; especially the attraction of the earth's mass for bodies near its surface
[同]
gravitation, gravitational attraction, gravitational force, gravity
[例]
- the more remote the body the less the gravity
- the gravitation between two bodies is proportional to the product of their masses and inversely proportional to the square of the distance between them
- g
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