sigma bond

So would you expect this to be a pi bond or a sigma bond her PROFESSOR: OK, so I'm hearing some mixed answers.

你们觉得这是一个π键还是sigma键？，我听到有不同的答案。

So, as they're very quietly handing out your class notes, let's think about what this bond is here, this boxed bond, is it a pi bond or a sigma bond?

在他们发讲义的同时，我们来看看这个键，方框里的这个键，它是sigma键还是π键？

But once you have a double bond here, we have our pi bond, as well as our sigma bond.

但一旦你有了双键，我们有π键，也有sigma键。

So if we have a single bond here, would you consider that a sigma bond or a pi bond?

如果这里有个单键，你觉得这是sigma键还是π键？

So that's exactly what our definition of a pi bond is, so we have one sigma bond, and one pi bond.

这是我们对π键的定义，我们有一个sigma键，和一个π键。