coalgasn.煤气coaln.煤；木炭vt.烧成炭；供应煤vi.加煤；装煤coalminingmethod采煤方法coal quality log煤质测井coal mine spoils煤矸石coal gangue heap煤矸石山coal tar naphtha[医] 煤焦油精, 煤焦油石脑油coal inflammable煤自燃Coal mine mining煤矿开采coal stocktaking存煤量测量coal - measure煤系coal barren zone无煤带