coalizev.加入联盟
coaln.煤;木炭vt.烧成炭;供应煤vi.加煤;装煤
coal powder furnace粉煤加热炉
coal sieving system煤炭筛分系统
coal-tar creosote煤焦杂酚油
coal dust pollution扬尘污染
coal-rock gateway半煤岩巷
Coal- based fuels煤基燃料
coal-quality test煤质化验
coal-fired plants燃煤电厂
coal seam thickness煤层厚度
coal biodegradation煤的生物降解