external collision 外在冲击
Autobody and collision repair studies trains individuals to use technical knowledge and skills to repair. reconstruct and finish automobile bodies. fenders. and external features.
车身和碰撞维修专业的学生使用所学的技术知识和技能来修复，建造和完成汽车车身，挡泥板和外部器件。
Below the "t" type two slot glide through the center was the center of the two slot in collision or hook at installation, can make the slide in athletic process by external through mass.
下面的两条“T”形槽的中心正好通过滑行器的质心，在这两条槽的两端安装碰撞器或挂钩，可使滑行器在运动过程中所受外力通过质心。
After collision and grounding, the load - bearing capacity of a ship hull is weakened while the floating condition and the external load distribution of the ship may change dramatically.
在船舶发生碰撞和搁浅后，一方而是船体结构承载能力的削弱；另一方面是船舶浮态和外载荷分布的的著变化。
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