coalpitn.煤坑;炭灶
coaln.煤;木炭vt.烧成炭;供应煤vi.加煤;装煤
coal seam subsided column高分辨率地震勘探
coal tar topical solution煤焦油外用液
coal electricity industry煤电工业
coal accumulation centers聚煤中心
coal fired utility boiler燃煤电站锅炉
coal pillar under channel河床煤柱
coal direct liquefication直接液化
coal dry cleaning process煤干洗方法
Coal planer plough system刨煤机成套设备
coal bed methane prospect煤层气目标区