Because this is a dipole, he chose the pole part of dipole to give us polar covalency.

这就是偶极，鲍林选择了偶极中“极“这一部分来,组成极性共价这个词向我们诠释。

麻省理工公开课 - 固态化学导论课程节选

We only have the one bond so the actual HF molecule is polar, it has a net dipole.

但HF中只有一根键,所以分子也是极性的而甲烷中有一个网状偶极。

麻省理工公开课 - 固态化学导论课程节选

So this is a little bit negative and this is a little bit positive, which means I could model this by drawing a dipole. This is a dipole.

这边带一点负电,这边带一点正电，这意味着我能把它表示,成一个偶极。

麻省理工公开课 - 固态化学导论课程节选

If we put a dipole that has the freedom to move, we put that dipole in an electric field, it will align itself with the field lines.

若我们将偶极释放到自由空间中，比如说放到电场里，他们会自动排序按同一方向。

麻省理工公开课 - 固态化学导论课程节选

There is another orthography that is used to indicate dipole.

表示偶极还有一种方法,表示偶极。

麻省理工公开课 - 固态化学导论课程节选

Let's look at that one. Here we have a dipole.

我们也标出了一个偶极。

麻省理工公开课 - 固态化学导论课程节选

It's going to be a dipole. This is plus; this is minus.

这是个偶极子，这里是正，这里是负。

麻省理工公开课 - 固态化学导论课程节选

So now that means if this is where the center of positive excess charge lies and on top of it is the center there is no displacement of the charge so there is no net dipole.

所以现在我们说,如果正电荷中心,就位于,那么还是在这里负电荷中心也在这里,所以没有空间偶极。

麻省理工公开课 - 固态化学导论课程节选

I have to ask is there a net dipole?

我必须问这里是否有一个网状偶极？

麻省理工公开课 - 固态化学导论课程节选