And the third one talks about the question of degeneracy, and it is called the Hund's Rule.

它的第三部分讲的是简并的问题，被称作，洪特定律。

麻省理工公开课 - 固态化学导论课程节选

So we gonna back up in that previous variation Let's just see if we can pick up what the missing third part here.

我们要回到刚才的变奏,看看我们能不能捕捉到,缺失的第三部分

耶鲁公开课 - 聆听音乐课程节选

So this thing on the left is part one, part two, part three.

最左边的是第一部分，然后第二，第三部分。

哈佛公开课 - 计算机科学课程节选

The last slide and the last point I want to make for people refers to the 3rd part of how we would like to help folks like Mike.

下面是最后一张幻灯片，我要说的最后一个观点,以及对于第三部分的人,如何帮助像迈克这样的人。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

As soon as Milton describes for us the events in heaven that lead up to the Nativity, he begins the this is the prelude of the poem, it's broken up in to two chunks: the prelude and then what Milton calls the hymn he begins the third stanza of the prelude to his poem with a plea to the Heavenly Muse for inspiration.

弥尔顿一给我们描述引导基督诞生的天堂的事情,他就开始描述,这就是诗歌的开端，分为两部分：,这个开端还有弥尔顿称之为颂歌的部分,他开篇的第三段用了,对天国的缪斯寻求创作灵感的请愿。

耶鲁公开课 - 弥尔顿课程节选

So part three down there at the bottom we've got an example of polyphony where I take in the tune and set it against itself a little bit.

在最下面的第三部分,我已经把那小曲做成了复音的例子,和它自己有所对比

耶鲁公开课 - 聆听音乐课程节选

So, what is the third part there?

那么,第三部分是什么

耶鲁公开课 - 聆听音乐课程节选