frequency的意思

基本释义

• n 屡次；次数；频率

  the number of times that something happens within a particular period of time or within a particular group of people

例句

1. Side effects from prescribed drugs are being reported with increasing frequency (= more and more often ) .

   处方药的副作用正越来越频繁地被报道出来。

2. The relative frequency of fraternal twins has halved since 1950.

   自1950年以来，异卵双胞胎的相对出生率下降了一半。

3. Traffic accidents have decreased in frequency over recent years.

   近年来交通事故发生的频率已经下降。

4. The frequency of his visits annoyed her.

   她对于他的频繁来访感到厌烦。

5. Accidents are happening with increasing frequency.

   事故发生得越来越频繁。

6. If we can know their frequency we will monitor their talking.

   如果我们知道他们的频率,我们就能监听他们的谈

短语

• high frequency 高频
• low frequency 低频率；低周波
• frequency domain [化]频域；频率范围
• frequency conversion 频率变换
• radio frequency 无线电频率

近义词

英英释义

noun 1. the number of observations in a given statistical category Synonym: absolute frequency 2. the ratio of the number of observations in a statistical category to the total number of observations Synonym: relative frequency 3. the number of occurrences within a given time period e.g. the frequency of modulation was 40 cycles per second the frequency of his seizures increased as he grew older Synonym: frequenceoftenness

词汇搭配

同根词