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中文摘要：
讨论串联系统中双参数指数部件的参数和系统可靠性指标的估计问题。在系统失效原因被屏蔽的情形下，分别利用极大似然法和Bayes估计法给出了部件参数和系统可靠性指标的估计。最后利用随机模拟方法给出数值例子。
英文摘要：
The estimations of parameters is discussed and the reliabilities in the series system components is dis- cussed. The system components lifetimes are assumed to be exponential distribution with two parameters. When the exact cause of system failure has been unknown, parameters and the reliabilities of the component are estimated by using maximum likelihood estimation and Bayes estimation. At last, numerical simulation study is presented.
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