介绍了故障树分析法和模糊故障树分析法的基本特点和步骤，重点介绍了故障树的定性分析和定量分析的基本原理。
The basic trait and step of the FTA and the fuzzy fault tree analysis are introduced, especially the basic theory of the qualitative analysis and the quantitative analysis.
为了较好的解决这个问题，本文首先通过故障树分析（简称FTA）的学习，探讨用故障树分析法作为眼科医疗器械产品质量可靠性评价模型的基础。
To settle this question better, this thesis discusses to use FTA as the base of product quality reliability evaluation model of ophthalmic medical instrument by learning FTA;
首次提出了应用故障树分析法（FTA）对五级船闸控制系统设计方案进行可靠性分析和评估，得到故障树分析图。
This paper expatiates on marine engine room fault analysis and safety measures, in particular discusses FTA and fault analysis method research.
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