clastic reaction的用法和样例：
例句
- The behavior of forming and cracking of carbenium ions was analyzed and the reaction pathway of propylene formation was summarized.
通过分析正碳离子的生成与裂解反应特点，探讨了丙烯的生成规律。 - The existing of poypropylene can raise the liquid fraction ratio, especially the light oil ratio, so it can fortify the effect of the cracking reaction of polyene to light oil.
摘要在废旧聚烯烃的裂解反应中，聚丙烯的存在，可以提高轻油馏份的收率，增强反应的油化效果，本文称之为聚烯烃裂解反应的增强效应。
