Coaltern.科尔特
coaln.煤;木炭vt.烧成炭;供应煤vi.加煤;装煤
coal information highway煤炭信息公路
Coal mining working face采煤工作面
coal seam interpretation煤层定性定厚解释
coal-consumption gauge煤耗计量表
Coal controlling effects控煤作用
coal-bed gas reservoir煤层气藏
Coal Handling Gallery-
coal and rock separation煤岩分离
coal-unloading machine卸煤机
coal cutting up and down采区上(下)山