为了改进小型客车正碰撞性能，建立了小型客车车架前纵梁碰撞的有限元模型。
In order to improve a mini-bus crashworthiness, firstly, a finite element method model was built.
物料经转子加速后以一定的绝对速度大小和方向冲击在打击板上，物料与打击板处于正碰撞状态，使物料得以有效破碎。
The materials are accelerated by the rotor into a certain absolute speed and direction, and impact on the striking board in a positive bumpiness status with the materials crushed effectively.
采用该模型模拟了脑部正碰的过程，得到了碰撞过程的速度、能量、应变和应力曲线。
With it we simulate a brain front crash process, and get the curves which describe the process's speed, energy, strain and stress.
当星系发生碰撞时，很少会真正碰到一起。
When galaxies collide it is rare that any two stars actually collide.
当星系发生碰撞时，很少会真正碰到一起。
When galaxies collide it is rare that any two stars actually collide.
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