对物体运动及改变或引起运动的力的作用的科学研究叫做动力学。

The scientific study of the motion of bodies and the action of forces that change or cause motion is called dynamics.

youdao

对物体运动及改变或引起运动的力的作用的科学研究叫做动力学。

The scientific study of the motion of bodies and the action of forces that change or cause motion is called dynamics.

youdao