频率离差的英文：
frequency deviation

frequency是什么意思：
n. 发生率，频繁，频率

W is the radian frequency deviation from the center frequency
△W是角频率与中心频率的偏离值。

The frequency inverters has a function of variable voltage and variable frequency.
频率逆变器具有变压、变频功能。

Accidents are happening with increasing frequency.
事故发生得越来越频繁。

He varied the transmission frequency.
他变换了无线电传送的频率。

There will be no amplification of radiation at the frequency ??
在频率?舜Φ姆?射将不会有任何增强。

deviation是什么意思：
n. 背离，偏离；离差；绕航

cyclical deviation
循环离差

aggregate deviation
综合离差

We will not deviate from its route and you will not deviate from my instruction.
我们不能背离它的路线，你也不要违背我的指示。

Vice was a deviation from our nature.
不道德行为就是背离我们生活常轨的行为。

Deviation is justifiable to save life or property.
如果是因人命和财产的救助，绕航是合理的行为。