When two parameters of four-order cumulant function choose values of the diagonal direction and the off-diagonal direction of the matrix and the third parameter is zero, we can get the best matrix.
其中当四阶累积量函数的两个变量分别在矩阵的对角线方向和偏离对角线方向取值并且第三个变量取零时，得到的矩阵的分析效果最好。
Based on the second-order coherence function theory, authors have studied nonlinear effects of third-and fifth-order on polarization beats in a cascade three-level system (TPBCTS and FPBCTS).
本文采用二阶相干函数理论研究了级联三能级系统中三阶及五阶极化拍频(TPBCTS及FPBCTS)的非线性效应。
The third part explored the mental mechanisms in 6-to 10-year-olds' understanding of irony from second-order theory of mind and executive function perspective.
二阶心理理论和执行功能对6～10岁儿童反语理解的影响及其机制；
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