Coaltonn.科尔顿(在美国;西经 82º37' 北纬 39º06')
coaln.煤;木炭vt.烧成炭;供应煤vi.加煤;装煤
coal mine geology煤矿地质学
coal powder sieve粉煤筛分
coal storage yard煤库,煤场
coalmine gob area煤炭采空区
coal mine logging煤田测井
coal mine tailing煤矿废弃地
coal dust furnace煤粉燃烧炉
Coal -tar pitch煤沥青
coal pile trimmer煤堆修整器
coal tar emulsion焦油沥青乳液