So let's think about methane using valence bond theory.

让我们用价电子成键理论来看一看甲烷。

youdao

So the idea behind valence bond theory is very easy to understand.

价电子成键理论，非常容易理解。

youdao

So, we can think about now how do we describe this bond in valence bond theory.

我们现在可以考虑，怎么在价电子成键理论中描述这个键。

youdao

All right, so that's really all there is to thinking about valence bond theory in terms of the most simple explanation here.

好了，这就是,价电子轨道理论的,最简单的解释。

麻省理工公开课 - 化学原理课程节选

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

In valence bond theory, the focus is on discussing the bonds, but it should look very familiar to you, because there's two types of bonds that we want to discuss here.

在价电子成键理论中，所关注的是讨论成键，但这对于你们来说应该很熟悉，因为这是我们要讨论的两种键。

麻省理工公开课 - 化学原理课程节选

This makes sense because the stock, unlike the bond, has much more price upside, and in theory you give up steady income for potential price appreciation.

FORBES: Three Cliff-Proof Dividend Stocks

No less than the noted bond king, Bill Gross of PIMCO, subscribes to this theory, so strong, in fact, that PIMCO has cut its holdings of government debt nearly to zero percent.

FORBES: Commercial Real Estate's Sink-Or-Swim Moment As QE 2 Heads To Port

In theory, such a huge increase in purchases should cause bond prices to rise and yields to fall.

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