According to reliability theory of probability, the probability value of different grade of seismic hazard of water pipe buried underground under earthquake action was calculated.

根据概率可靠性理论，计算了地震作用下地下直埋管道的各个震害等级的概率值。

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It is certain we make use of reliability theory basing on the probability Stat. methods to analyze the invalidation probability of deep pit retaining structure.

以概率统计为基础来分析结构破坏概率的可靠度理论的引进是一种必然趋势。

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The reliability of unsinkability of ship is emphatically discussed by means of probability principle, probability of flooding of the damaged compartment being explained.

着重用概率原理讨论船舶抗沉可靠性问题及对舱室破损浸水概率加以解释。

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