通过频率、级别和音质来描述。

Characterized by frequency, level and quality.

youdao

研究表明通过频率域分析可以得到有关人体响应的重要信息。

It is shown that important information about human response can be obtained from a frequency domain analysis.

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它通常出现在射频，叶片通过频率和整流子刷频率，其高次谐波。

It usually appears at the RF, blade passage frequency and commutator brush frequency, and their higher harmonics.

youdao

So really what we'll probably do is instead either give you the wavelength or the frequency and you'll go ahead and calculate the energy from there.

所以实际上我们可能的做法是,给你波长或者频率,然后你可以通过他们计算得到能量。

麻省理工公开课 - 化学原理课程节选

we start high and go low, we're dealing with emission where we have excess energy that the electron's giving off, and that energy is going to be equal the energy of the photon that is released and, of course, through our equations we know how to get from energy to frequency or to wavelength of the photon.

当我们从高到低时，我们说的,是发射,电子有多余的能量给出，这个能量等于，发出,光子的能量，当然我们可以通过方程,从能量知道，光子的频率，和波长。

麻省理工公开课 - 化学原理课程节选

I want to make one other point before we launch into that, and that is the following: that composers use the rate of harmonic change-- whether it's changing or not changing-- to sort of make us feel different ways about the music that we are listening to.

在此之前我还要说一个问题，不管和声有没有改变，作曲家都能通过和声改变的频率-,让我们对所听的音乐有不同的感受-,它能让我们感受到这段音乐。

耶鲁公开课 - 聆听音乐课程节选