对这次撞击的计算机模拟显示，这两个物体都会在撞击中熔化，而撞击者稠密的核心会以熔融岩石的形式落入地球的液化铁芯中。

Computer simulations of this impact show that both of the objects would melt in the impact and the dense core of the impactor would fall as molten rock into the liquefied iron core of Earth.

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河水在楼下撞击的声音叫人惊恐万分。

The sound of the river moving about downstairs was frightening.

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这些水可能是来自撞击的彗星，或来自月球内部。

It could have come from the impacts of comets, for instance, or from within the Moon.

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Let's look at the energetics of one of those electrons crashing into a hydrogen atom inside the gas tube.

我们一起来考察一下,其中的一个电子的能量,在阴极射线管中,撞击到氢原子上。

麻省理工公开课 - 固态化学导论课程节选

What is the energy of the electron, the energy of this electron accelerating from rest and crashing into the anode here?

什么是电子的能量，电子能量由其他部分增大,撞击进入阳极？

麻省理工公开课 - 固态化学导论课程节选

And if we do, in fact, hit it with light to get the electrons off, it will go back to the straight up in position, or if it gets knocked hard enough it does that, too.

而且如果我们这么做，事实上，用光轰击它以逐出电子，它就会在原位置沿直线返回，或者如果它被撞击的足够猛烈,也会出现上述现象。

麻省理工公开课 - 化学原理课程节选