anti-hazard classification 防爆等级
hazard classification system 危险性分类制度
building hazard classification 建筑危险分类
fire hazard classification 火险分类 ; 火灾分类
Hazard classification of the product 物品危害分类
electrical hazard classification 电气危害
interim hazard classification 临时危害分类
Know well about related information in QEHS of this position, such as identification of EHS environment factors and hazard, solid waste classification and chemical management and so on.
了解本岗位有关的环保、职业健康及安全的内容（如环境因素及危险源识别，固体废弃物分类，化学品管理等等）
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.
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。
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