One second is formally defined as 9, 192, 631, 770 cycles, or "ticks and tocks," of microwave energy emitted or absorbed by cesium-133 atoms under carefully controlled conditions.

在形式上，一秒钟，或者说一次“滴答声”被定义为在小心受控条件下，微波能量喷发或是铯133原子吸收的9 192 631 770个循环。

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Any number of expensive 30-second commercials would fail to counteract a few bad news cycles in a row.

即使是海量的、价格高昂的30秒广告也无法抵消连环不断的负面消息所带来的影响。

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Rather than waste good processor cycles waiting around for data to transmit, your code can instead have a second buffer waiting to process.

不要浪费宝贵的处理器周期来等待数据传输。

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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

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

Now PC chips are running with clock speeds of 2 gigahertz, or 2 billion clock cycles a second.

FORBES: Silicon Confusion

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