... 二阶导数 Second derivative 第二阶偏微分 Second partial derivatives 第二四分位数 Second quartile ...
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second order mixed partial derivatives 二阶混合偏导数
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On the basis of the advanced first order and second moment method, the partial derivatives of the failure probability to the distribution parameters of the process variables were formulated.
由求解失效概率的改进一次二阶矩法出发，给出了失效概率对中间变量分布参数偏导数的计算公式；
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