基本解释n.平炉同根派生 openhearth相关词英汉例句Keywords Openhearth dust;isomorphous transformation;ultrafine magnetite;spinel ferrite; 平炉尘;磁性超微粉体;尖晶石型铁氧体;同晶转化;the openhearth process 平炉法openhearth更多例句