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利用人员可靠性分析事件树的理论方法，树立了事件树分析与人员可靠性分析的基本概念，阐明了人员可靠性分析中应力与行为形成因子的特性．确定了压力表系统ＨＲＡ事件树形成前的任务和约定，建立了校验压力表系统故障人因分析的ＨＲＡ事件树，叙述了建造过程．分析了操作人员不同操作形态可能的行为结果，计算了人员操作失误的系统可靠度，定量说明了人员可靠性分析在工程研究中的影响程度
By using the method of personnel reliability analysis of event tree, the basic concepts of event tree analysis and personnel reliability analysis are established, and the characteristics of stress and behavior formation factors in personnel reliability analysis are clarified. The tasks and conventions of the HRA event tree before the formation of the pressure gauge system were established. A HRA event tree was established to check the human factors of the failure of the pressure gauge system, and the construction process was described. Analyzed the possible behavior results of operators in different operation modalities, calculated the system reliability of personnel error and quantitatively explained the influence degree of personnel reliability analysis in engineering research