如果我们考虑引入最后两个碳原子，你会看到的是对于每个碳原子，其中的两个杂化轨道，和另外的碳原子成键。

If we think about bringing in those last two carbons, what you can see is that for every carbon, two of its hybrid orbitals are being used to bond to other carbons.

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在这之前我们要引入价电子成键理论，和杂化轨道的概念。

And to do this we're going to introduce valence bond theory, and the idea of hybridization of orbitals.

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所以它是沿着键轴方向的,而且这里是一个碳sp2杂化轨道，和一个氢的1s轨道的结合,在这里我们可以合并他们。

So it's along the bond axis and it's between a carbon s p 2 hybrid, and then the hydrogen is just a 1 s orbital that we're combining here.

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And to do this we're going to introduce valence bond theory, and the idea of hybridization of orbitals.

在这之前我们要引入价电子成键理论，和杂化轨道的概念。

麻省理工公开课 - 化学原理课程节选

If we think about bringing in those last two carbons, what you can see is that for every carbon, two of its hybrid orbitals are being used to bond to other carbons.

如果我们考虑引入最后两个碳原子，你会看到的是对于每个碳原子，其中的两个杂化轨道,和另外的碳原子成键。

麻省理工公开课 - 化学原理课程节选

So we're going to finish talking about molecular orbital theory, we'll switch over to discussing bonding in larger molecules, even larger than diatomic, so we'll move on to talking about valence bond theory and hybridization.

我们要结束关于分子轨道理论的讨论，转向讨论大分子的成键，比二原子分子更大的分子，我们会继续讨论价电子成键理论,和杂化。

麻省理工公开课 - 化学原理课程节选