辅助泵

例句：

1. 1. The hospital uses an auxiliary pump to help the patient breathe duringsurgery.
   医院使用一个辅助泵帮助病人在手术期间呼吸。
2. 2. The auxiliary pump is responsible for maintaining the pressurein the system.
   辅助泵负责维持系统中的压力。
3. 3. The auxiliary pump wasdesigned to replace the old one, whichhad been damaged.
   辅助泵被设计来替代旧的，已经损坏的那个。