For sinter with 25% and 50% MAC fines the iron oxides mainly consisted of hematite and magnetite, the bonding phase were mainly dicalcium silicate, glassiness, and a few amount of calcium ferrite.

配比25%和50%的两种烧结矿中铁均以赤铁矿、磁铁矿，粘结相要以铁酸钙、硅酸二钙和玻璃质，铁酸钙数量不多。

The prontpage interface of Web courseware includes glassiness buttons of course learning, course project, Web test and review, duologue between teacher and student, and user registration etc.

课程学习、课程大纲、网上测评、师生交流、用户注册等玻璃质感按钮。