the branch of mechanics concerned with the forces that cause motions of bodies
同义词：dynamics
kinetics详细解释
ki.net.ics n.(used with a sing. verb)（名词）（与单数动词连用）See dynamics 参见 dynamics The branch of chemistry that is concerned with the rates of change in the concentration of reactants in a chemical reaction.动力学：化学的一个分支，考虑化学反应中反应物变化的速率
