So people were dying of old age and that was really heart disease that was killing them they just didn't know, so it's multi-factorial and we'll talk about that.

老死的人实际是死于心脏病,只不过人们不知道这一点罢了,这是个多因素的问题,我们以后会进一步探讨

耶鲁公开课 - 生物医学工程探索课程节选

So for example, if you look at the 1 s orbital here, you can see that actually it is lower in the case of the multi-electron atom than it is for the hydrogen atom.

所以举例来说，如果你看到这里的1s轨道,你可以看到实际上,多电子原子情况的。

麻省理工公开课 - 化学原理课程节选

But when we get to the multi-electron atoms, we see that actually the p orbitals are higher in energy than the s orbitals.

但是当我们来看多电子原子时，可以看到实际上p轨道的能量,要高于s轨道。

麻省理工公开课 - 化学原理课程节选

For example, for the 2 s, again what you see is that the multi-electron atom, its 2 s orbital is lower in energy than it is for the hydrogen.

举例来说对于2s轨道，在多电子原子，中可以看到,它的2s轨道的能量低于氢原子的。

麻省理工公开课 - 化学原理课程节选

So what we end up with is one radial node for the 2 s orbital of hydrogen, and we can apply that for argon or any other multi-electron atom here, we also have one radial node for the 2 s orbital of argon.

那意味着它们都是径向节点,所以我们得出的结论是，氢的2s轨道是1个径向节点,我们可以将它应用，到氩或者任意一个多电子原子,对于氩的2s轨道。

麻省理工公开课 - 化学原理课程节选