英语词汇“roof-fall exploitation”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	roof-fall exploitation
释义	roof-fall exploitation cavinghard coal mining固定建筑物顶部下挖式开采挖陷式；硬煤开采
随便看	Nylon is made from air,coal and water Nylon is made from air, coal and water nylonized polyester fibre nylonizing nylon-jacketed fiber nylon-jacketed optical fiber nylon jersey Nylon Kinetic Energy Recovery Rope Nylonkong nylon lacing cord nylon latch lock nylon leather belt nylon letdown nylon line nylonlOlO nylon lustrine nylon made artificial blood vessel nylon-made artificial blood vessel nylon marline nylon membrane nylon mesh nylonmesh screen nylon mesh screen nylon mesh shoe nylon mesh stockings