coalboxn.煤箱;发黑烟的炸弹
coaln.煤;木炭vt.烧成炭;供应煤vi.加煤;装煤
coal-water hole溜煤眼
coalmine flooding煤矿水害
coal lane protect煤巷支护
coal-dust brick煤灰砖
Coal mine closure煤矿关闭
coal-field fire煤田火区
coal- air ratio风煤比
Coal slimes water煤泥水
coal-fired unit燃煤锅炉机组
coal seam hosting煤层赋存