基本解釋偶然失效期英漢例句雙語例句The motor on the spot is in operation in the random failure period and therefore its failure rate is approximately a constant.現(xiàn)場使用的電機(jī)基本運(yùn)行在偶然失效階段，因而其失效率近似為一常數(shù)。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.考慮隨機(jī)截尾試驗(yàn)中有些試驗(yàn)產(chǎn)品無故障數(shù)據(jù)出現(xiàn)，提出采用平均秩次法計(jì)算經(jīng)驗(yàn)分布函數(shù)。random failure period更多例句專業(yè)釋義數(shù)學(xué)隨機(jī)故障期