coalbinn.煤箱coaln.煤；木炭vt.烧成炭；供应煤vi.加煤；装煤coal roadway support煤巷支护coal liquid fraction煤液化油馏分coal gangue concrete煤矸石混凝土coal flowing channel运煤通道coal mining employee煤矿人员coal mine enterprise煤矿企业coal-mine irainage煤矿排水coal-fired furnace燃煤加热炉coal store character储层特征coal quality control煤质管理