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IELTS BNC: 2406 COCA: 3009

frequency noun HAPPENING

[ C or U ] the number of times something happens within a particular period, or the fact of something happening often or a large number or times(事件发生的)频度,次数;频繁

Complaints about the frequency of buses rose in the last year.去年对公车发车频率的投诉增长了。
the increasing frequency of terrorist attacks越来越频繁的恐怖袭击
It's not the duration of his absences from work so much as the frequency that worries me.与他的旷工时日相比,他旷工的频繁程度更让我担忧。

frequency noun LIGHT/SOUND/RADIO

[ U ] specialized physics the number of times that a wave, especially a light, sound, or radio wave, is produced within a particular period, especially one second(尤指声波或无线电波每秒振动的)频率

the frequency of light光的频率
low frequency radiation低频辐射
The human ear cannot hear very high-frequency sounds.人耳听不到极高频率的声音。

[ C ] specialized media a particular number of radio waves produced in a second at which a radio signal is broadcast频率(无线电信号的每秒电波数)

Do you know what frequency the BBC World Service is on?你知道英国广播公司的广播频率是多少吗?
IELTS BNC: 2406 COCA: 3009
frequency

noun¹

1rate at which sth happens發生頻率ADJECTIVE | VERB + FREQUENCY | PREPOSITION ADJECTIVEgreat高發率increased, increasing增高的/越來越高的頻率reduced降低的頻率estimated, expected估計的/期望的頻率different, same, similar不同的/相同的/相似的頻率relative相對發生率The relative frequency of this illness in the area is of concern to all doctors.所有的醫生都關注這種病在該地區相對頻繁的發生率。alarming令人擔心的頻率Bullets bounced off the rock with alarming frequency.子彈頻頻打在石頭上又彈射出去,令人心驚膽戰。VERB + FREQUENCYdecrease in, increase in頻率下降/上升These incidents have increased in frequency.這些事件的發生率上升了。decrease, increase, reduce降低/增加/減少頻率The drug can reduce the frequency and severity of attacks.這種藥能降低發病次數和嚴重程度。assess, calculate, compare, determine, estimate, measure, observe評估/計算/比較/決定/估計/測量/觀測頻率affect, change影響/改變頻率PREPOSITIONwith frequency以⋯的頻率Accidents of this sort are happening with increasing frequency.這類事故發生得越來越頻繁。
frequency

noun²

2of a wave波的頻率ADJECTIVE | FREQUENCY + NOUN ADJECTIVEhigh, low高頻;低頻microwave, radio, vibration, wave微波頻率;射(電)頻(率);振動頻率;波頻signal信號頻率FREQUENCY + NOUNrange, spectrum頻率範圍;頻譜band頻帶modulation頻率調制
IELTS BNC: 2406 COCA: 3009
frequency noun
channel
IELTS BNC: 2406 COCA: 3009

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