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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我已经将4个能量相等的键画好了，他把这称为sp3杂化。

I have four bonds that are of equal energy, and he called this an sp3 hybrid.

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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

I have four bonds that are of equal energy, and he called this an sp3 hybrid.

我已经将4个能量相等的键画好了，他把这称为sp3杂化。

麻省理工公开课 - 固态化学导论课程节选