释义 |
fre·quencyBrE /ˈfriːkwənsi/NAmE /ˈfriːkwənsi/ noun (fre·quencies) [U, C] 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。 [U] 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。 [C, U] (specialist) the rate at which a sound or electromagnetic wave vibrates(= moves up and down) (声波或电磁波振动的)频率◆a high/low frequency 高频;低频 amplitude, atom, energy, fission, force, frequency, gravity, molecule, nuclear, physics [C, U] (specialist) 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。 |