单词：gravitational force
gravitational force的用法和样例：
例句
- The force of gravity makes things fall to earth.地心引力使物体落向地面。
- Gravity is a very weak attractive force.地心引力是一种非常微弱的引力。
- The stabilizer provides a counter force to the CG.安定面提供一个反向力给重力中心。
- Kinematics is defined as the study of motion without reference to massor force.运动性是对不涉及重力和其他外力时汽车运动的研究。
- An apple falls by the force of gravitation.地心吸力使苹果落地。
- gravitational attraction地球引力
- gravitation[物]引力
- gravity重力
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