When metallic tailings were added by 10%,cement of 42.5R grade would be generated except No. 3 metallic tailings. Cement performances index met ordinary Portland cement standard.是什么意思_When metallic tailings were added by 10%,cement of 42.5R grade would be generated except No. 3 metallic tailings. Cement performances index met ordinary Portland cement standard.在线翻译_英语_读音_用法_例句