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中文摘要：
针对反延时难以实现的状况，提出了用延时电路并联实现反延时的方法，并用极大似然法和经验Bayes法讨论了系统可靠性评估问题，给出了系统失效率、可靠度和平均寿命等可靠性指标的估计。利用计算机Monte-Carlo随机模拟的方法对可靠性指标的Bayes估计和极大似然估计进行比较，结果表明，经验Bayes估计优于极大似然估计。
英文摘要：
Based on the condition that the counter delay is difficult to realize ,this article propose a method to realize it by delay parallel system ,and the reliability performance such as the failure rate, the reliability function and average life for this sys- tem are given by using statistical method （MLE） and EBE. In the end, EBE and MLE results were also compared by Monte-Carlo method by the computer, the results show that the EBE is better than the MLE.
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