cyclic substitution

例句：

1. 1. In the process of evolution, cyclic substitution is common.
   在进化过程中，循环替换很常见。
2. 2. The company's strategy involves cyclic substitution of raw materials.
   该公司的战略涉及原材料的循环替换。
3. 3.The researcher found that cyclic substitution could lead to unexpected results.
   研究者发现，循环替换可能会导致意想不到的结果。