When prior density function of R is in form of π(R |α)∞Rα and 0<a<2, the hierarchical Bayes estimation of the product reliability is given under the conditions of the binomial distribution With zero-failure data.%对二项分布无失效数据,在可靠度的先验密度为且时,给出了可靠度的多层Bayes估计.
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