The results of calculation indicate that FETA (Fuzzy Event Tree Analysis) method applied is better to know the rules of accidents about submarine structure system.
计算结果表明，采用模糊事件树方法有利于了解潜艇结构系统事故的规律。
After calculating the matrix, the discrete event tree is established and used to solve the system fault probability.
在求得状态转移矩阵后，再建立离散动态事件树，来求得系统故障概率。
The probability of event occurrence in a movable teeth drive is described by fuzzy number. The fuzzy fault tree analysis of a swing movable teeth transmission system is conducted.
用模糊数表示活齿传动中各事件发生的概率，对摆动活齿传动系统进行了模糊故障树分析。
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