金属矿山 meaning in Chinese

metal mine

Analysis on factors influencing production scale of metal mines
金属矿山合理生产规模的影响因素分析
Study of deep mining technology of large - scale opencast metal mine
大型露天金属矿山深部开采技术研究
Mechanism analysis of mud - rock flow occurrence in underground metal mines
金属矿山井下泥石流发生机理分析
Main issues metallic mines now are facing and solutions of the problems
金属矿山当前面临的主要问题及对策
Application of fuzzy mathematics theory in mine safety assessment
模糊数学理论在金属矿山安全评估中的应用

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