有时候它也叫核间轴。

Sometimes it's also called the internuclear axis.

youdao

一个三键，同样的也有沿着核间轴sigma键。

A triple bond, again is going to have one sigma bond on the internuclear axis.

youdao

我们得到在两个核间的电子几率密度的堆积。

We get a buildup of electronic probability density between the nuclei.

youdao

So even though we see a nodal plane down the center, I just want to really point out that it's only when we have a nodal plane in the internuclear or the bond axis that we're calling that a pi orbital.

虽然在中间有个节面，我想要指出的是,只有节面在核间轴,或者键轴上时,我们才叫它π轨道。

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If we're talking about a single bond, we're talking about 2 orbitals overlapping in the internuclear axis.

如果我们讨论的是单键，我们讨论的是两个轨道,在核间轴中重叠。

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And a sigma bond forms any time you have two orbitals coming together and interacting on that internuclear axis.

当你把两个轨道合在一起,并在核间轴上有相互作用时,就形成了sigma键。

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