作用与反作用定律 law of action and reaction ; [力] action and reaction law
作用力和反作用力定律 law of action and reaction
作用和反作用的定律是通用的。
作用力等于反作用力，这是牛顿第三定律，因此Fij与Fji完全相等，但它们方向相反。
Actions equals minus reactions, according to Newton's Third Law, so this force, Fij, will be exactly the same as Fji, except in the opposite direction.
第三个定律说每一个作用力都有相等的反作用力。
The third law said that every action has an equal and opposite reaction.
应用推荐