coalyadj.煤的;煤状的;含煤的
coaln.煤;木炭vt.烧成炭;供应煤vi.加煤;装煤
coalescents成膜助剂
coal coring煤心采取
coalcuttingn.采煤
coal feeded给煤机
coalingbasen.煤站
coal supply给煤
coal caving放顶煤
coal policy煤炭政策
coal bunkern.煤库;煤仓
coal safety煤矿安全