coalingn.装煤
coaln.煤;木炭vt.烧成炭;供应煤vi.加煤;装煤
coal refuses piles煤矸石山
coal-pillar width煤柱宽度
Coal tar distillate煤焦油馏出物
coal handling plant输煤设备
coal mine wasteland煤矿废弃地
coal industry group煤业集团
coal reserves seams煤储层
coal listed company煤炭上市公司
Coal feeding bunker受煤仓
coal briquette bond型煤粘合剂