silica-alumina cracking catalyst

例句：

1. 1. The silica-alumina cracking catalyst is crucial for the production of petroleum products.
   硅铝裂化催化剂对于石油产品的生产至关重要。
2. 2.The silica-alumina cracking catalyst is used in the refining process to improve the quality of the oil.
   硅铝裂化催化剂在炼油过程中被使用，以提升油品的质量。
3. 3. The silica-alumina cracking catalyst plays a vital role in the chemical industry, helping to produce various chemicals and materials.
   硅铝裂化催化剂在化工行业中扮演着重要角色，帮助生产各种化学品和材料。