Coaltern.科尔特
coaln.煤;木炭vt.烧成炭;供应煤vi.加煤;装煤
coal-forming condition成煤条件
coal dropping from belts撒煤
coal tar deep processing煤焦油深加工
Coal-- series kaolin煤系高岭土
coal-fired gas turbine燃煤的燃气轮机
coal-gas waste-water煤气残液
coal looking orientation找煤方向
coal mining exploitation煤矿开发
coal energy based cities煤炭资源型城市
coal resource conformity煤炭资源整合