frequency

复数：frequencies

1. [U](某事发生可重复的)频率 rate of occurrence or repetition of sth
2. [U]经常发生,频繁 fact of being frequent or happening often
3. [C][U](声波或无线电波的)振动频率; 波段 rate at which a sound wave or radio wave vibrates; band or group of similar frequencies

• alarming frequency惊人的频率
• high〔low〕 frequency高〔低〕频
• increasing frequency越来越频繁

• radio frequency无线电频率
• word frequency词的出现频率

• at〔with〕 frequency以…的频率
• be on the frequency for a channel正接收某频道

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

natural frequency自然频率，固有频率；本盏率

frequency response频率响应；录放幅频响应

frequency spectrum频谱；频率谱

frequency converter变频器

frequency band频带；频段

video frequency视频率

frequency control频率控制

frequency division分频；频率划分

frequency range频率范围

vibration frequency频率；振动频率；波动频率

frequency modulation调频

intermediate frequency中频

frequency division multiplexing频分复用；分频多路传输

power frequency电力频率；工业频率

resonance frequency共振频率；谐振频率；共鸣频率

1. Accidents on that highway are happening with increasing frequency.
   那条高速公路上车祸发生得越来越频繁。
2. Accidents are happening with increasing frequency.
   事故正在愈加频繁地发生。
3. He wrote to both with tolerable frequency.
   他和他们通信，相当频繁。
4. He varied the transmission frequency.
   他变换了无线电传送的频率。
5. He tuned his radio to the police frequency.
   他把无线电调到警方的频率。
6. The pitch depends on the frequency.
   音调的高低是由频率决定的。
7. We can often correlate age with frequency of illness.
   年龄的大小往往与发病率有关。