复数： collisions

They can be used for collision detection or avoidance .

它们可以被用在碰撞检测或规避上。

That was the worst accident since 1997 , when a collision killed more than 100 people .

那起事故是1997年以来最严重的火车事故，1997年的一次列车相撞事件造成100多人死亡。

That set him on a collision course with the west .

这将他送上了与西方冲突的路途。

The distance should keep the old equipment safe from a terrible accident or collision .

这段距离可以保证这些旧的设备远离可怕的事故和冲撞。

There won 't be a collision today .

今天可不允许有碰撞发生。