We might be asked, for example, to determine what all of the different elements could be that would produce a spectrum that gave us 5 different lines.

那么我们会问，比如，有哪些不同的元素可以产生,一个有五条分立谱线的光谱？

麻省理工公开课 - 化学原理课程节选

We have the line spectra lying out there in the literature, and people read the literature.

这篇文章也涉及到了线光谱,人们都读过这篇文章。

麻省理工公开课 - 固态化学导论课程节选

- So the first thing that we want to do, if we're thinking about something like this, is just to determine exactly what orbitals are causing the five different lines that we're seeing in the spectrum.

我们要做的最要紧的事，如果我们在思考这种问题的话，其实只不过是,准确地确定哪些轨道会导致,这五条分立谱线在光谱中出现。

麻省理工公开课 - 化学原理课程节选

He measured the line spectra of atomic hydrogen.

测量了氢原子的线光谱。

麻省理工公开课 - 固态化学导论课程节选

So that's why we're not seeing separate lines in this spectrum.

因此，我们在光谱中看不到,分立的谱线。

麻省理工公开课 - 化学原理课程节选

And I also want to point out, it's guaranteed pretty much you may or may not be able to see, sometimes it's hard to see that one that's getting near the UV end of our visible spectrum. So we won't worry if we can't see that.

我要指出的是，我可以保证你们,但你们可能会看不到，有时候很难看到,这个可见光谱边缘接近紫外光地方的这根谱线,所以看不到也不用担心。

麻省理工公开课 - 化学原理课程节选

So, for example, when people, and we'll talk about this next class, were looking at different characteristics spectra of different atoms, what they were seeing is that it appeared to be these very discreet lines that were allowed or not allowed for the different atoms to emit, but they had no way to explain this using classical physics.

举个例子，当大家看到,不同原子的特征光谱时,他们看到的是一些分离的线,那可以使不同的原子,发射或不发射出去，但是这些无法用经典物理来解释。

麻省理工公开课 - 化学原理课程节选

So we want to look at any element that has a 3 p orbital filled, but that does not then go on and have a 4 s, because if it had the 4 s filled then we would actually see six lines in the spectrum.

所以，我们要找一找有哪些元素的,3，p，轨道被占据，但没有，4，s，轨道被占据,因为如果，4，s，轨道也被占据了,那我们会在光谱中看到第六条谱线。

麻省理工公开课 - 化学原理课程节选

So these names, they don't really make any sense why they're called past s p and f, and it turns out that it comes from spectroscopy terms that are pre-quantum mechanics where, for example, this is called the sharp line, I think the principle, the diffuse, and the fundamental.

看到这些名字，你会发现,它们为什么叫s，p，f是没什么道理的，事实上,它们来源于,量子力学之前的光谱学中的术语，例如，它们分别叫做锐线，我认为是主线，漫射和基本。

麻省理工公开课 - 化学原理课程节选