硫砷钢矿

例句：

1. 1. Themine is rich in sulfurand iron ore, making it avaluable resource.
   这个矿富含硫和铁，因此是宝贵的资源。
2. 2. Sulfur is essential forthe production of fertilizers and plastics.
   硫对于生产肥料和塑料至关重要。
3. 3. The smelting process involves heating the ore toextract the metals.
   冶炼过程涉及加热矿石以提取金属。