撞击时间会长很多,可能有1/4秒。

The impact time would probably be much longer maybe a quarter of a second.

youdao

因此速度改变量和撞击时间,才是重要的。

So what matters is this changing velocity and the impact time.

youdao

毫无疑问，在恐龙时代末期有过一块巨大的天石撞击了地球。撞击时间与灭绝时间相重合。

There is no doubt that a huge rock did hit the Earth at around the time of the last dinosaurs and its strike coincided with their disappearance.

youdao