Coali夸利
coaln.煤;木炭vt.烧成炭;供应煤vi.加煤;装煤
coal slate煤质板岩
coal minem煤矿
Coalmining采煤
coal-tar[医] 煤焦油
coal paste煤糊
coal draft煤巷
coal grade煤质
coal apple煤结核
coal dryer煤干燥器
coal ratio煤比(冶炼一吨铁所需煤炭量)