MAC

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.

25%和50%的两种烧结矿中氧化物均赤矿、磁矿主，粘结相主要钙、硅二钙和玻璃质主，但钙数量不多。

Altough I didn’t know the difference between a Mac and PC, once Macs were so beige, palid and ordinary as any lowsy PC.

如微软和苹果，都有它们各自的指导手册，详细规定了颜色，透视及其他细节。