... random failure period 偶然故障期 random-failure period 随机故障间隔期 wear out failure period 耗损失效期; 损耗失效期 ...
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random failure period 随机故障期 ; 偶发失效期
The motor on the spot is in operation in the random failure period and therefore its failure rate is approximately a constant.
现场使用的电机基本运行在偶然失效阶段，因而其失效率近似为一常数。
Because some products show no failure in the random truncation test period, this paper USES the mean rank order method to calculate the empirical cumulative distribution function.
考虑随机截尾试验中有些试验产品无故障数据出现，提出采用平均秩次法计算经验分布函数。
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