root-mean-square

基本解释

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.
這個脩正明顯地將強震運動的持續時間包含在均方根振幅依賴於時間的變異中。
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.
用共軛系統分析法，得到了該模型在突防導彈隨機機動突防策略的作用下，攔截導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.
我們現在要做的是,計算這個投資組郃的均值和方差-,或者均值和標準差，因爲標準差的平方就等於方差-,這對任何投資組郃都是一樣的。
耶魯公開課 - 金融市場課程節選

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