coal oiln.煤油;煤馏油
coaln.煤;木炭vt.烧成炭;供应煤vi.加煤;装煤
coal gasification wastewater煤气废水
coal gasification technology煤气化技术
coal mining with water power水力采煤
coal-residual coprocessing煤油共处理
coalbed methane liquefaction煤层气液化
coal ash melting temperature煤灰熔融温度
coal fired industrial boiler工业锅炉