A.礦物析晶 B.結(jié)晶水和碳酸鹽分解 C.固相反應(yīng) D.礦石的氧化還原
A.1.5~2.0% B.2.0% C.0.5% D.1.5%
A.1630~1850 B.1680~1900 C.1570~1890 D.1550~1780