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 pump煤水泵
coal minc煤矿
coal yard煤场,贮煤场
coal rate煤耗率
coal facen.因开采而露出的煤面;煤的采掘现场
coal land煤田
Coal plow两硬地质条件
Coal Hill古典史学
coal mine煤矿
coal holen.地下煤库