次数数列的英文：
【统】frequency series

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。

series是什么意思：
n. 系列，连续；系列节目；系列比赛；丛书；串联；级数

There was a series of explosions.
有一连串的爆炸事件。

A series of tilting matches; a tournament.
比武一系列持矛的比武；马上比武

A series of accidents disordered the shop.
一连串的意外事件把店里弄得乱七八糟。

He guested on a television series.
他客串了一个电视系列剧。

a graduated series of textbooks
分等级的教科书系列