The advanced first order and second moment iterative method are employed for calculation on reliability index and failure probability.
采用改进的一次二阶矩法对腐蚀管道的可靠性指标和失效概率进行了分析和计算。
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；
The reliability of the fatigue crack growth life of single inclusion is analyzed by the advanced first order and second moment method.
采用改进一次二阶矩法分析单个夹杂裂纹扩展的可靠性。
The mean-value-first-order-second-moment method and advanced first-order-second-moment method are used to analyze the aseismatic serviceability of water supply network.
借鉴结构可靠度分析方法，给出了供水管网抗震功能可靠度分析的一次二阶矩方法。
The mean-value-first-order-second-moment method and advanced first-order-second-moment method are used to analyze the aseismatic serviceability of water supply network.
借鉴结构可靠度分析方法，给出了供水管网抗震功能可靠度分析的一次二阶矩方法。
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