并完成隔振系统冲击后碰撞实验研究工作；
To finish the impact experiment of isolation systems after shock;
小孩子们在轻微的碰撞后常常会哭。
你认为是什么情况，碰撞后的动能怎样？
What do you think the situation is with the kinetic energy after the collision?
这是碰撞后的情况。
我只比较，它们碰撞前一刻，与碰撞后一刻。
I only compare just the moment before they hit with just the moment after they hit.
碰撞后动能是多少？
碰撞后，两个物体粘在一起。
同时对碰撞发生后的碰撞反应进行了研究。
第五圈有个驾驶员出了错误，他的车子发生碰撞后熄火了。
On the fifth lap one driver made mistake, and his car stopped dead when it hit something.
第五圈有个驾驶员出了错误，他的车子发生碰撞后熄火了。
On the fifth lap one driver made mistake, and his car stopped dead when it hit something.
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