片语
manganiferous iron ore含锰铁矿
manganiferous sedimentary formation含锰沉积建造
manganiferous formation含锰建造
manganiferous white cast iron含锰白口铸铁
manganiferous limestone含锰灰巖
manganiferous ore processing锰矿加工
manganiferous ore含锰矿石
manganiferous by-product含锰废料
manganiferous rock series含锰巖系