A.能向鋼水輸氧的渣 B.流動性好的渣 C.堿度高的渣
A.R=SiO2%/(CaO%+MgO%) B.R=CaO%/(SiO2%+MgO%) C.R=(CaO%+MgO%)/SiO2%
A.增加 B.降低 C.視情形不同既可降低亦可增加