urbanite

同义词释义

1)urbanite,铁锰钙辉石2)iron and manganese,铁锰3)Iron and manganese,铁、锰4)Bixbyite,方铁锰矿5)overproof iron and manganese,铁锰超标6)Ferromanganese crust,铁锰结壳7)Fe-Mn nodules,铁锰结核8)copper、Zinc、Iron、Manganese,铜、锌、铁、锰9)Fe-Mn alloy,铁-锰合金10)separation between iron and manganese,铁锰分离