polymerization catalyst

例句：

1. 1.Polymerization is a process that converts raw materials into polymers.
   聚合是一种将原材料转化为聚合物的过程。
2. 2. The catalyst plays a crucial role in the reaction, speeding up the reaction rate.
   催化剂在反应中起着至关重要的作用，加快了反应速率。
3. 3. The polymerization catalyst was developed to improve the quality of plastic products.
   聚合催化剂的研制是为了提高塑料产品的质量。