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 suitability煤种适应性
Coal and maceral煤岩及显微组分
coal-air ratio风-煤比
coal mine survey煤矿测量
coal ash content灰分
coal derived DME煤制二甲醚
Coal Power Plant燃煤电厂
coal mining face工作面
coal mine project煤矿项目
coal charging car装煤车