electron exchanger

例句：

1. 1.The electron exchanger is used to remove pollutants from the air.
   电子交换器用于从空气中去除污染物。
2. 2. The electron exchanger plays a crucial role in maintaining the balance of the ecosystem.
   电子交换器在维护生态系统平衡中起着至关重要的作用。
3. 3. The electron exchanger helps to prevent the spread of disease by removing harmful bacteria from the environment.
   电子交换器通过从环境中移除有害细菌来防止疾病的传播。