金属非金属矿山
metal and nonmetal mine mining
metallic and nonmetallic mine
小型金属非金属矿山
small-sized metal and nonmetal mines
非金属-金属转化
nonmetal-metal transition
非金属矿产
Non-metal Mineral
nonmetallic mineral resources
non-metallic minerals
nonmetallic minerals
nonmetal minerals
Non metallic minerals
非金属矿产品和制品
non-metallic minerals & products
非金属矿产资源
Non-metal Mineral Resources
nonmetallic mineral resources
Nonmetal deposits
金属-非金属过渡
metal nonmetal transition
金属非金属跃迁
metal nonmetal transition
金属-非金属转变
Metal-nonmetal transition
优势非金属矿产资源
Preponderant Nonmetal mineral resources
次生石英岩型非金属矿床
Secondary quartzite type of non-metallic deposits
多金属矿产勘查
multi-metal resources prospecting
非放射性金属矿产
non radioactive metallic mineral resources
非金属矿
nonmetal mine
Nonmetal ore
non-metal ore
nonmetallic ore
Non-metallic Mine
non-metallic mines
non-metallic mines industry
non metal minerials
non-metallic minerals
non-metallic mineral
non-metal minerals
nonmetallic minerals
nonmetalliferous ore
industrial minerals