effective components

• 有效成分

effective components的用法和样例：

例句

1. The effective ingredients in the extract are flavones and terpenes.
   银杏提取物中的有效成分主要为黄酮甙和萜类内酯。
2. The effective compound before and after microfiltration were studied.
   测定了有效成分的含量。