active ingredient

短语

[化] 活性组分 [医] 有效成分

词形变化

active ingredients 复数 active ingredients

释义与例句

n.
  1. 1.

    The specific compound in a natural or man-made mixture that is responsible for the mixture's activity.

    有效成分

    医学
  2. 2.

    The essence of something, or a sine qua non that it requires.

    比喻