If we have a high frequency, what about the wavelength, long or short? All right. Good. So we should always be able to keep these relationships in mind.

如果频率高，那波长是长还是短？,好，不错，我们要记住这些关系,类似的。

麻省理工公开课 - 化学原理课程节选

So consent has come up a lot and here in John Locke, we have one of the great philosophers of consent.

同意出现频率之高，本课将讲到约翰·洛克，最伟大的哲学家之一，他对同意的看法。

耶鲁公开课 - 公正课程节选

If you go to look at congressional discussion of tax rates, you won't see risk management mentioned very often.

如果你看过国会有关税率的讨论，就会发现“风险管理“出现的频率并不高。

耶鲁公开课 - 金融市场课程节选

The higher frequencies take a lot shorter time to clear.

频率越高,消失也就越快

耶鲁公开课 - 聆听音乐课程节选

So this is our final equation, and this is actually called the Balmer series, which was named after Balmer, and this tells us the frequency of any of the lights where we start with an electron in some higher energy level and we drop down to an n final that's equal to 2.

把2代入到这里，所以得到1除以,这就是我们最终的方程，这叫做Balmer系，以Balmer名字命名的,它告诉我们从高能级掉到n等于2的,最终能级所发出光的频率。

麻省理工公开课 - 化学原理课程节选

So you know that x-rays are higher frequency than UV light, for example, that means it's also higher energy than UV light, and if you think back to our photoelectric effect experiments, do you remember what type of light we were usually using for those? Does anyone remember?

你们知道，X，射线的频率比紫外光高，这意味着，它的能量也比紫外光要高，那么，请大家回想一下我们的光电效应实验，大家还记得当时我们用的是什么光源吗？,有人记得吗？

麻省理工公开课 - 化学原理课程节选