英语词汇“煤层顶板”的翻译、意思、用法、释义-英汉汉英双解词典

单词	煤层顶板
释义	煤层顶板〖采矿〗roof
随便看	warm-air syringe warm air therapy warm air treatment warm air wedge war making power war-makings Warman war-man warm and cold combined deformation warm and cold composite formation warm and comfortable warm-and-cool warm and dry Warm and extremely humid Warm and fragrant warm and fragrant remarks warm and fuzzy warm-and-fuzzy warm and hot deformation warm and humid index warm and ice-rich frozen soil warm and ice-rich fxozen soil warm and ice-rich permafrost warm and moist stream warm and orderly