root-mean-square

基本解釋

This paper introduces the pulse wide modulation(PWM) based on minimum root-mean-square value of harmonic current of inverter.
介紹了逆變器諧波電流均方根值最小的脈寬調(diào)制（PWM ）。
This modification incorporates explicitly the duration of strong earthquake ground motion into the time dependent variation of the root-mean-square peak amplitude.
這個修正明顯地將強震運動的持續(xù)時間包含在均方根振幅依賴于時間的變異中。
Using the adjoint system method, analytical solutions of interceptor's root-mean-square miss distance are derived from the case where the penetration missile adopt random maneuver strategy.
用共軛系統(tǒng)分析法，得到了該模型在突防導(dǎo)彈隨機機動突防策略的作用下，攔截導(dǎo)彈脫靶量均方根的解析解。

What we want to do now is compute the mean and variance of the portfolio-- or the mean and standard deviation, since standard deviation is the square root of the variance-- for different combinations of the portfolios.
我們現(xiàn)在要做的是,計算這個投資組合的均值和方差-,或者均值和標準差，因為標準差的平方就等于方差-,這對任何投資組合都是一樣的。
耶魯公開課 - 金融市場課程節(jié)選

the square root of the average of the squares of a set of numbers or quantities ( abbr: rms)