cyclic compounds

• 环状化合物

cyclic compounds的用法和样例：

例句

1. The predominance of these series is replaced in turn by benzothiophenes and increasingly complex ring-like compounds in the higher temperature ranges.
   在更高的温度范围内，这些化合物的绝大部分又被苯噻吩和更复杂的环状化合物置换。