mining of hazardous mineral 中文意思是什麼
mining of hazardous mineral
解釋
危險礦物開采-
For the situation of many heavy accidents in process of the gypsum mineral deposit underground mining in our country now, the dangerous and hazardous factors are analyzed and the worked - out section collapse is considered as the most important dangerous factor
摘要本文針對當前我國石膏礦床地下開采過程中重大特大事故不斷的局面,分析了石膏礦床地下開采過程中存在的危險危害因素,指出采空區大面積坍塌是當前我國石膏礦床地下開采過程中最重要的危險危害因素。
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