摘要
作者从恢复系数ｅ的一般定义出发，引入了“穿透”碰撞与“爆炸”碰撞的概念，从而将ｅ的取值范围扩大到实数．
In accordance with the general definition for the coefficient of restitution,the author proposes to introduce the concepts of “perforating” collision and “exploding” collision, so that the value of e can be extended beyond the interval (0,1) .
