It is the first time to research into the identification problem of major hazard source concerning widespread mined-out area instability systematacially.
首次对大面积采空区失稳的重大危险源辨识问题进行了系统研究。
Evaluations are conducted on the possibility of major hazard source accidents, severity, inherent risk and risk grade and the practical calculations are also conducted.
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.
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。
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