frequency
['fri:.kwənt.si] noun
HAPPENING 发生
countable or uncountable
■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 trains rose by 201% in the last year.去年对火车发车频率的投诉增长了201%。 •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。
['fri:.kwənt.si] noun
LIGHT/SOUND/RADIO, ETC 光／声音／电波
uncountable specialized
■the number of times that a wave, especially a 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。 countable specialized
■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？ |