The number of cycles per second is the frequency.

而频率则是指每秒可完成的周期数。

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Refresh rates are measured in Hz, or cycles per second.

刷新率的单位是 Hz 或 周每秒。

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One MHz equal one million instruction cycles per second.

1mhz等于每秒一百万个指令周期。

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The one thing you want to keep in mind though is that Hertz does not actually mean inverse seconds, it means cycles per second. So, if you're talking about a car going so many meters per second, you can't say it's going meter Hertz, you have to say meters per second.

写成5每秒，或5赫兹,你们要记住的是赫兹,并不等于秒的倒数，它是每秒的循环数，如果你们说,一辆车一秒可以走多少米,你不能说它走了米赫兹。

麻省理工公开课 - 化学原理课程节选

So, if something cycles through five wavelengths in a single second, we would just say that the frequency of that wave is five per second.

如果一个东西在一秒,内经历了五个波长，我们就说这个波的,频率是每秒5次。

麻省理工公开课 - 化学原理课程节选

There are not many devices which emit radiation at several million million cycles per second, and those that do exist are unwieldy.

ECONOMIST: Physics

Electrical engineers at Stanford built a cardiac device that uses a combination of inductive and radiative transmission of power, at about 1.7 billion cycles per second, to its coiled receiving antenna.

ENGADGET: Stanford researchers make heart implant powered by radio waves, put batteries out of a job