Diffraction - not only will a wave of sound reflect or absorb but it can go over the obstacle.

衍射-声音虽然会被反射已经吸收，但是他能绕过阻挡物。

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This wave of excess density is sound.

这种过剩密度的波就是声波。

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Shock waves are just a particular kind of pressure wave - which is what sound itself comprises.

冲击波只是压力波的一种特定形式- 它是声音自身所包含的。

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So, saying wave functions within molecules might sound a little confusing, but remember we spent a lot of time talking about wave functions within atoms, and we know how to describe that, we know that a wave function just means an atomic orbital.

说分子内的波函数可能,听着有点容易搞混，但记住我们花了很多时间,讨论了原子中的波函数，而且我们知道如何去描述它，我们知道波函数意味着原子轨道。

麻省理工公开课 - 化学原理课程节选

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