Coalan.夸拉(在布基纳法索;西经 2º06' 北纬 12º03')
coaln.煤;木炭vt.烧成炭;供应煤vi.加煤;装煤
coal trade煤炭行业
coal brass富碳黄铁矿
coal wiper刮煤器
coal level料位
coal sampl煤样
coal tongs火钳
coal brush碳刷
coal drill煤钻
coal-bedn.煤层
coal floor煤层底板