coalpitn.煤坑;炭灶
coaln.煤;木炭vt.烧成炭;供应煤vi.加煤;装煤
Coal reservoir properties储层物性
coal-based vehicle fuel煤基车用燃料
coal mining under village村庄下压煤
coal - resourceful city煤炭资源型城市
coal burnning power plant燃煤电厂
coal resource exploration煤炭资源勘查
coal contained wastewater含煤废水
coal blending composition配煤结构
coal mine main ventilator煤矿主通风机
coal liquefaction residue煤液化残渣