峰峰集团羊渠河矿8634工作面底板突水安全性的模糊综合评价
봉봉집단양거하광8634공작면저판돌수안전성적모호종합평개
Fuzzy Comprehensive Evaluation on the Safety of Water Inrush of 8634 Work face floor, Yangquhe Mine, Fengfeng Group