displacement和replacement（displacement）
1、位移Objects in under the action of extraneous factors caused by change the position of the particle。 2、物体在外来因素作用下引起的质点位置的改变。...
1、位移Objects in under the action of extraneous factors caused by change the position of the particle。 2、物体在外来因素作用下引起的质点位置的改变。...