旧称千周，无线电波频率的单位。每秒振动1000次为1千赫。 千赫，缩写是或KHZ*，它是交流电(AC)或电磁波(EM)频率的单位，等于1000赫兹(1000Hz)。这个单位也用于信号带宽的度量和描述。
... kilocycle 千周 kilocycles per second 千赫 kilocycles per second 千赫千周秒 ...
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他们的仪器探测到了频率为3千赫的非常微弱的无线电波。
Their instruments detected very faint radio waves at a frequency of 3 kilohertz.
该过滤器都是连续可调，并从20赫兹到20千赫两个频带范围。
The filters are both continuously adjustable , with a range from 20 Hz to 20 kHz in two bands.
蝙蝠音频频率范围也可以高达170千赫，是=由从低频逐渐到高频。
The bats can also "sweep through a frequency range of up to 170 kilohertz, " moving from lower to higher notes, "while a human singer produces a glissando through less than 2 kilohertz at most."
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