As the new millennium dawned, the new York Stock Exchange was self-evidently the nodal point of a vast global economic network that was American in design and largely American in ownership.

随着新千年的到来，纽约证交所(New York Stock Exchange)已经不言自明地成为一个庞大全球经济网络的节点，这个网络由美国人设计，也基本上为美国人所有。

youdao

Sigma as being cylindrically symmetric about the bond axis, and it's important to point out that it has no nodal plane across this bond axis.

键是，So, we, talk, about, a, sigma, bond，关于键轴圆柱对称的，需要着重指出的是，而且沿着键轴是没有节面的。

youdao

If you are taking a panoramic image of a landscape where everything is far away, you can be considerably off the nodal point with little ill effect.

如果您是拍摄风景的全景照片，里面的景物离我们很远，即使偏离节点程度很大，也不会有多大的负面效应。

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。

麻省理工公开课 - 化学原理课程节选

The reason that I wanted to point out this nodal plane here is because this is why it is called a pi orbital.

我指出这个节面的原因是因为,它就是为什么这个叫做π轨道的原因。

麻省理工公开课 - 化学原理课程节选

So again, we can name these molecular orbitals and these we're going to call also to point out there is now a bond axis along this nodal plane, which is something we didn't see before when we were combining the s orbitals.

同样的，我们可以,命名这些分子轨道,这些轨道叫做-同样要指出的是,现在沿着键轴是一个节点面，这是我们讨论s轨道的时候,从没有看到过的。

麻省理工公开课 - 化学原理课程节选