second-moment
基本解釋
- n.二次矩
英漢例句
- In the last days of the second moment a great war is to be concluded with judgment and a global conflagration lasting 1,468 years.
在第二片刻的最后日子，一場(chǎng)世界大戰(zhàn)最后是隨著審判而來，一場(chǎng)全球的大火災(zāi)持續(xù)了1，468年。 - The parameters of the model are fuzzily processed and the fuzzy risk can be evaluated by using the modified first order second moment method.
通過對(duì)模型中的參數(shù)進(jìn)行模糊化處理，用改進(jìn)一次二階矩法計(jì)算了地下水過量開采的模糊風(fēng)險(xiǎn)率。 - It has also been shown that the relationship between the second moment and the square of peak width at1/4 height is linear.
并證明了二階矩與1／4峰高處峰寬的平方成線性關(guān)系。 - Parameters, based on the NGLDM, such as fineness, coarseness, entropy, second moment, and non uniformity parameter were introduced to describe the texture of froth.
引入了基于該矩陣的細(xì)度參數(shù)、粗度參數(shù)、二階距參數(shù)、熵參數(shù)及不均勻性等特征參數(shù)來描述泡沫的結(jié)構(gòu) . - The second moment of the least squares estimator in the nonlinear regression model is obtained in this paper in terms of two kinds of curvatures defined by Bates and watts.
本文從似然方程的二級(jí)近似出發(fā),求出了非線性回歸模型最小二乘估計(jì)量(LSE)的二階矩與Bates and Watts定義的二種曲率之間的關(guān)系。