first-order second-moment theory
first-order second-moment theory
一阶二阶矩理论
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Based on reliability theory, the first order second moment method (JC method) is adopted to analyze and compute the fatigue reliability.
基于可靠度理论，本文采用一次二阶矩法(JC法)对疲劳裂纹扩展可靠性进行计算。
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