1. Using
bauxite, clay, mullite as main raw material, and adding some amount of sillimanite, andalusite and kyanite, honeycomb ceramic was prepared by extrusion method.
以高铝矾土、粘土、莫来石为主要原料，添加适量硅线石、红柱石和蓝晶石，用挤出成型法制备了蜂窝陶瓷。
2. Each of Alcan's four business groups ― Bauxite and Alumina, Primary Metal, Engineered Products and Packaging ― holds strong market positions in the Americas, Europe and Asia.
加铝集团的四个业务单元?原铝及氧化铝，原金属，工程铝产品和包装在美洲，欧洲及亚洲拥有强大的市场份额。
3. By analyzing its grindability, the study bases on the digestion performance of black
bauxite to find out the optimum condition so as to provide theoretical basis for production.
从分析黑铝土矿的可磨性出发，针对其溶出性能做研究，旨在找出黑铝土矿的最佳溶出条件，为生产提供理论依据。
