Any frequency can't have an energy, you have to -- you don't have a continuum of frequencies that are of a certain energy, it's actually punctuated into these packets that are called photons.

任何频率不能有个能量,你必须要-对某一个能量上,你不会有连续的频率,光子实际上分立的存在。

麻省理工公开课 - 化学原理课程节选

And when we look at this, it's actually split by what's called a nodal plane, which is pointed out in light orange here on this picture, but what we just mean is that there is this whole plane that separates the two lobes where there is absolutely no electron density.

我们来看这里，实际上它被一个节面分开，在这图里用淡黄色表示，这意味着这个分开,两个叶瓣的平面上,是完全没有电子密度的。

麻省理工公开课 - 化学原理课程节选

Reagan was a big believer in free markets; we had a law that actually passed, it's called the Depository Institution's Deregulation and Monetary Control Act of 1980--that's actually before Reagan.

里根是自由市场的崇信者,那时其实通过了一项法律,称为,1980年存款机构放松管制和货币控制法案,该方案是在里根执政之前通过的

耶鲁公开课 - 金融市场课程节选

In other words--some sort of merger, even if it's not actually called a merger.

FORBES: Microsoft And Yahoo!, Take Two

"Officially it's called an 'accessory dwelling unit, ' but actually the house is really the accessory, " joked Mr. Butler.

WSJ: A Bicyclists' House Built for Two

And on one channel there was TalkLeft - the channel is actually called TalkLeft - and then the other, it's TalkRight.

NPR: Does Partisanship Have Its Place in Politics?