3 under coal looking
返回 19 条匹配短语对
coal under villages
村庄压煤
村庄下压煤
overlying strata under coal mining conditions
采动覆岩
Coal Looking Orientation
找煤方向
Coal Looking Prospect
找煤前景
找煤远景
Deep Part Coal Looking
深部找煤
Tongxu coal looking area
通许找煤区
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
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