Now,the United States used the old treaty to prevent interference from Colombian troops.

VOA: special.2010.08.19

So we want to have constructive interference to form a bond, where as if we had destructive interference, we would not be forming a bond.

我们需要,相干相长来成键，如果，相干相消了，就不能成键，所以这时候。

麻省理工公开课 - 化学原理课程节选

So, we'll start by taking a look at constructive interference, and another way to explain this is just to say again, molecular orbitals are a linear combination of atomic orbitals.

我们先来看一看相长干涉，另外一个解释它的方法就是说，分子轨道是原子轨道的组合。

麻省理工公开课 - 化学原理课程节选

"The U.S.policy should not be to interference in other countries.

VOA: standard.2009.04.17

You've heard about RNA interference, for example, and that is the process of stopping this, to stop a gene from being expressed.

比如说,你们听说过的RNA干扰,就是一种阻止,基因表达的手段

耶鲁公开课 - 生物医学工程探索课程节选

Got it.At one end though, s the Wall Street end, s much harder to see direct government interference.

明白，但是另一方面，华尔街，it’,很难看见，it’,政府的直接干预。

斯坦福公开课 - 经济学课程节选

So if we have constructive interference between the two, what we're going to see is our molecular orbital looks something like this.

如果两者是相干干涉，我们看到分子轨道,看起来是这个样子的。

麻省理工公开课 - 化学原理课程节选

So in this case where we're adding it together, this is going to be constructive interference.

在这个情况下，我们把它加在一起，这是相干干涉。

麻省理工公开课 - 化学原理课程节选

In contrast, if we have destructive interference, what we're going to form is a sigma 2 s star, and what does the star designate?

相反，如果我们是相消干涉，我们会形成sigma2s星，星代表什么？

麻省理工公开课 - 化学原理课程节选

Because if we think about wave behavior of electrons and we're forming bonds, then what we have to do is have constructive interference of 2 different electrons, right, to form a bond, we want to and together those probabilities.

如果我们考虑,电子的波动行为,并且，我们要成键的话,我们要,把，这些概率，加在一起,如果。

麻省理工公开课 - 化学原理课程节选

And in either case if we first talk about constructive interference, what again we're going to see is that where these two orbitals come together, we're going to see increased wave function in that area, so we saw constructive interference.

在任何情况下,如果我们首先讨论相长干涉的话，我们同样会看到,当这两个轨道靠拢的时候，我们看到这个区域有波函数增加，所以我们看到的是相长干涉。

麻省理工公开课 - 化学原理课程节选

sa So we have 1 s a, and we're drawing this as having a positive amplitude, but since we have destructive interference we're going to draw 1 s b as having the opposite sign, so we have a plus and a minus in terms of signs.

我们有，我们把这画成一个正的振幅，但因为我们是相消干涉,我们把1sb画成相反的符号，所以我们有一正一负两个符号。

麻省理工公开课 - 化学原理课程节选

It turns out to activate RNA interference, you deliver double stranded RNA.

要激活RNA干扰效应的话,可以将双链RNA转进细胞

耶鲁公开课 - 生物医学工程探索课程节选