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.
着重介绍了油气输送管道失效事故的类型及国内外典型案例。
Mainly introduce failure accident kinds and properties and typical cases in the domestic and at the a-board.
循环气体压缩机的紧急停车，是烷基苯联合装置非计划停车中的一个比较典型的事故案例。
Emergent shutdown of the recycle gas compressor is a very typical accident of non-plan shutdown happened in alkyl benzenes combination plant.
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