change of sides meaning in Chinese

换边

But the interaction on each other is the same if they have the same velocity . pressure has no distinct changes , but the change of side force is obvious . with the increase of vehicle velocity , the yawing tendency is intensified , and the roll tendency is also intensified during vehicles standing at parity
在会车过程中,随着速度的增大,车辆间的相互作用逐渐加强;随着车辆间距的增大,车辆间距的增大致使车体间相互作用减弱,但由于车辆等速造成车体间相互作用相等;车身表面压力在交会过程中变化不大,但侧向力变化较大,随着速度的增大,侧向力变化明显,车辆在刚交会时横摆趋势增大,在车体同位时侧倾趋势加强。