coalizev.加入联盟
coaln.煤;木炭vt.烧成炭;供应煤vi.加煤;装煤
coal milling system制粉系统
coal feeding system喂煤系统
coal gas components煤气成分
coal-tar compound[医] 煤焦油化合物
coal mine machinery煤矿机械
coal measure strata煤系地层
coal classification煤的分类
Coal to water ratio燃水比
coal burhing boiler燃煤锅炉
coal dust ball stove煤球炉