单词：active agent
active agent的用法和样例：
例句
- Alkyl indicant is a new non-ionic surface active agent.烷基糖苷是一类新型的非离子表面活性剂。
- Addition of activating agent has no obvious effect on fracture toughness of weld metal.添加活性剂对焊缝金属的断裂韧性没有明显作用。
- active活跃的
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