pericyclic reaction

例句：

1. 1. The pericyclic nature of the process makes itchallenging to predict its outcome.
   该过程的周期性使得预测其结果具有挑战性。
2. 2.The researcher found that the data wasconsistent with a pericyclic pattern.
   研究者发现数据与周期性模式一致。
3. 3. Thecycle of life is characterized by its pericyclic growth and decay.
   生命循环以其周期性的生长和衰败为特征。