Drift Coal
返回 19 条匹配短语对
Coal Drift
煤层巷道
全煤巷道
煤巷
Coal Drift Renovation
煤巷翻修
Long-Span Full Coal Drift
大跨度全煤巷道
top-coal falling region of coal drift
煤巷高冒区
coal and coal ash
煤及煤灰
coal and coal gas opening together
coal and coal industry of Shanxi
山西煤炭
coal and coal processing in Shanxi
山西煤炭
coal bed methane and coal coordinative development
煤层气与煤炭协调开发
coal bed methane in coal mine area
煤矿区煤层气
Coal mine and coal preparation plant
矿井及选煤厂
coal mining of fully -mechanized coal winning and caving the roof
综放开采
coal preparation plant for steam coal
动力煤选煤厂
coal quality of seven coal samples
7种煤煤质
coal seam a nd coal quality
煤层煤质
coal wall coal extraction
煤壁回采
coal water slurry(CWS) entrained flow coal gasification
水煤浆气流床气化
fully mechanized coal mining with caving of roof coal
综合开采
Non-stick plastic layer of coal and lean coal
不粘煤和瘦煤
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