- Frequency measures how often things repeat over time. City buses often reach stops at a frequency of every 15 minutes, unless it's snowing or raining really hard. In that case, the frequency will slow.
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- n. 频率；频繁
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1. Fatal road accidents have decreased in frequency over recent years.
近年来致命交通事故发生率已经下降。
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2. The program can show us word frequency .
这个程序可给我们显示词频。
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3. Objects like this turn up at sales with surprising frequency.
这样的东西在拍卖会上出人意料地频繁出现。
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4. a high frequency, a low frequency
高频；低频
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5. There are only a limited number of broadcasting frequencies.
广播频率的数量有限。
- frequency (n.) 1550s, "state of being crowded" (now obsolete); 1640s, "fact of occurring often;" from Latin frequentia "an assembling in great numbers, a crowding; crowd, multitude, throng," from frequentem (see frequent). Sense in physics, "rate of recurrence," especially of a vibration, is from 1831. In radio electronics, frequency modulation (1922, abbreviated F.M.) as a system of broadcasting is distinguished from amplitude modulation (or A.M.).
fre·quency / ˈfriːkwənsi ; NAmE ˈfriːkwənsi / noun ( plural fre·quencies ) 1 [uncountable , countable ] the rate at which sth happens or is repeated 发生率；出现率；重复率 ◆ Fatal road accidents have decreased in frequency over recent years. 近年来致命交通事故发生率已经下降。 ◆ a society with a high/low frequency (= happening often/not very often)of stable marriages 婚姻稳定率高╱低的社会 ◆ The program can show us word frequency (= how often words occur in a language). 这个程序可给我们显示词频。 2 [uncountable ] the fact of sth happening often 频繁 ◆ the alarming frequency of computer errors 计算机出错的情况惊人的多 ◆ Objects like this turn up at sales with surprising frequency. 这样的东西在拍卖会上出人意料地频繁出现。 3 [countable , uncountable ] ( technical 术语 ) the rate at which a sound or electromagneticwave vibrates (= moves up and down) （声波或电磁波振动的）频率 ◆ a high/low frequency 高频；低频 4 [countable , uncountable ] ( technical 术语 ) the number of radio waves for every second of a radio signal 频率（无线电信号每秒电波数） ◆ a frequency band 频带 ◆ There are only a limited number of broadcasting frequencies. 广播频率的数量有限。 frequency frequencies fre·quency / ˈfriːkwənsi ; NAmE ˈfriːkwənsi /
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