caustic magnesite

例句：

1. 1.The steel mill uses caustic magnesite to produce high-quality steel.
   钢厂使用炼钢用的铁矿石生产高质量的钢材。
2. 2.The process of making steel involves heating the raw materials and using caustic magnesite as a reducing agent.
   制造钢铁的过程包括加热原材料和使用炼钢用的铁矿石作为还原剂。
3. 3. The iron ore used in the steel plant is primarily sourced from nearby mines, with some being refined intocaustic magnesite for use in the production line.
   钢厂使用的铁矿石主要来自附近的矿山，其中一些被提炼成炼钢用的铁矿石用于生产线。