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。
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。
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%50%两种烧结矿中氧化物均矿、磁矿主,粘结相主要钙、硅二钙玻璃质主,但钙数量不多。
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