词汇	pit extracting
释义	pit extracting 井工开采
随便看	universal module universal mold universal money universal monitoring universal monochromator universal monochrome television tester universal mooring chock universal morality universal morphism universal motor universal mo-tor universal mould universal moulding machine universal mount universal mounting universal mounting channel universal multiline controller Universal multi-octet coded Character Set universal multiple bomb rack universal multiple-octet coded character set universal multipole universal multiprogramming system universal muscular hypoplasia universal music Universal Naming Convention