So in terms of thinking about ethane, we actually have two bond types that we're going to be describing just in terms of the carbon-carbon bond and then the carbon h bonds.

对于乙烷，我们有两种键,我们继续讨论一下,碳碳键,和碳氢键。

麻省理工公开课 - 化学原理课程节选

So let's talk about ethane and how we would actually write these bonds.

让我们来讨论乙烷,以及如何写出这些键。

麻省理工公开课 - 化学原理课程节选

If we have the molecule ethane, then what we're going to have first is our sigma bond that we described between the two carbons.

如果我们有乙烷分子，那我们首先有,碳碳之间的sigma键。

麻省理工公开课 - 化学原理课程节选

All right, so that's how we describe ethane.

好了，这就是我们如何描述乙烷的。

麻省理工公开课 - 化学原理课程节选