对液体推进剂在贮运过程中发生的泄漏情况进行了深入分析，建立了故障树模型，并讨论了底事件对泄漏事件的影响。

This paper analyzes the leakage that may occur during the liquid propellant store and transport, builds up the leakage fault tree and discusses how the basic incident affects the leakage incident.

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并用故障树表示故障原因及其传播逻辑关系，从故障树的顶事件至底事件形成故障分析支路，获取的知识以链表的结构存于知识库。

The fault analysis branch was formed from top-event to bottom event of fault tree. The knowledge was saved in repository with chain table structure.

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借助故障树的不交积之和，直接由底事件参量进行综合计算，将简化故障树的动态分析。

By means of the exclusive sum of products of a fault tree, the improved method USES the basic event parameters direct in the synthetic evaluation and makes the fault tree kinetic analysis more simple.

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