molecular sieve catalyst

例句：

1. 1. The molecular sieve catalyst is used to separate impuritiesfrom the gas mixture.
   分子筛催化剂用于从气体混合物中分离杂质。
2. 2. The molecular sieve catalyst is a criticalcomponent in the production of pharmaceuticals.
   分子筛催化剂是制药生产过程中的关键成分。
3. 3. The molecular sieve catalyst has been shown to improve theefficiency of chemical reactions.
   分子筛催化剂已被证明可以提高化学反应的效率。