coaleumn.煤烃
coaln.煤;木炭vt.烧成炭;供应煤vi.加煤;装煤
coal gas consumption煤气消耗
coal mechanic school煤炭技工学校
coal of Shanxi Group山西组煤
Coal of holding down压煤
Coal-crested Finchn.煤冠雀鹀
coal forming process成煤酌
coalcharging vehicle装煤车
coal-face flooding煤壁注水
coal-to-methanol煤制甲醇
coal-mine flooding煤矿水灾害