mol sieve catalyst

例句：

1. 1. Mol sieve catalyst is an important tool for purifyinggases.
   分子筛催化剂是净化气体的重要工具。
2. 2. The mol sieve catalyst was used to remove impuritiesfrom the raw materials.
   分子筛催化剂被用来从原材料中去除杂质。
3. 3. The mol sieve catalyst played a crucialrole in the chemical reaction.
   分子筛催化剂在化学反应中起到了关键作用。