矿山采空区地质环境三维恢复治理研究——以沙河市赵窑铁矿地质环境治理为例
광산채공구지질배경삼유회복치리연구——이사하시조요철광지질배경치리위례
Analysis of iron mine depletion region geological environment in Zhaoyao mining in Shahe city of Hebei province
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