The qualitative analysis on the relation of safety coefficient and ground loading with critical safety thickness is made.

定性分析了安全系数、地面荷载与临界安全厚度的关系；

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Human reliability analysis (HRA) is a very important part of probability safety assessment (PSA) in a nuclear power plant. Qualitative analysis is the basis and starting point of HRA.

人因可靠性分析(HRA)是核电厂概率安全评价(PS A)的重要组成部分，定性分析是HRA的基础和出发点。

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The methods for safety culture evaluation of enterprise are presented on the basis of the triangular fuzzy number and AHP method, with the fuzzy analysis of qualitative factors.

利用三角模糊处理函数表示定性因素，提出了基于三角模糊数和层次分析法的企业安全文化评价方法。

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