在研究瓦斯危险源辨识方法、分类分级方法的基础上分析煤矿瓦斯危险源系统结构，通过典型事故案例剖析煤矿瓦斯事故危险源系统结构。
On the basis of studying on identification, classification, gradation of gas accident hazard, the structure of coal mine gas accident is analyzed by means of typical accident.
本文对危险源评价分级的几种常见理论方法及在冶金企业中的应用情况进行了介绍，提出了企业危险源的监控管理措施。
This paper introduced several common theory and method of hazard origin assessment classify as well as applied condition, the control management measure is advanced for hazard origin in enterprise.
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