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 storage bin储煤槽仓
coal-pile yard煤堆场
coal mining type煤炭开采类型
coal deformation煤体变形
coal-tar resin煤焦油树脂
coal-rich zone富煤带
coal replacement煤炭置换
coal-fly-ash粉煤灰
coals for coking炼焦煤
coal fired plant火电厂