According to fuzzy evaluation of some experts, the fuzzy event tree is introduced in this paper to do quantitative calculation.
针对这一问题，利用专家对事故的模糊评判，引入模糊事件树进行定量计算研究。
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。
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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