non-metallic mine detector [军] 非金属探雷器

nonferrous metallic mine 有色金属矿山

underground metallic mine 地下金属矿山

metallic mine exploration 金属矿勘探

construction of metallic mine 冶金基建

large scale of metallic mine 大型金属矿山

non-metallic mine ral materials 非金属矿物材料

Copper-tungsten poly-metallic mine 铜钨多金属矿

metallic sulfide mine 金属硫化物矿山