second-moment
基本解释
- n.二次矩
英汉例句
- 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，一场世界大战最后是随着审判而来，一场全球的大火灾持续了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.
通过对模型中的参数进行模糊化处理，用改进一次二阶矩法计算了地下水过量开采的模糊风险率。 - It has also been shown that the relationship between the second moment and the square of peak width at1/4 height is linear.
并证明了二阶矩与1／4峰高处峰宽的平方成线性关系。 - Parameters, based on the NGLDM, such as fineness, coarseness, entropy, second moment, and non uniformity parameter were introduced to describe the texture of froth.
引入了基于该矩阵的细度参数、粗度参数、二阶距参数、熵参数及不均匀性等特征参数来描述泡沫的结构 . - 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.
本文从似然方程的二级近似出发,求出了非线性回归模型最小二乘估计量(LSE)的二阶矩与Bates and Watts定义的二种曲率之间的关系。