安全评价是对系统的危险性进行定性或定量分析，评价系统发生事故的可能性及严重度。
Safety assessment is to risk of system with qualitative and quantitative analysis, and evaluation system of the accident possibility and severity.
在研究分析了许多典型国内外事故危险性评价模型的基础上，总结并提出了重大工艺爆炸事故危险性分级、严重度评价方法及模型。
Severity evaluation and models of major explosion process accident have been put forward on the basis of study on many typical hazards evaluation models.
对重大危险源事故易发性、事故严重度、固有危险性及危险等级进行了评价，并进行了实例计算。
Evaluations are conducted on the possibility of major hazard source accidents, severity, inherent risk and risk grade and the practical calculations are also conducted.
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