充气者

例句：

1. 1.The inflater is used to inflate tires on bicycles.
   这个充气器用于给自行车轮胎充气。
2. 2. The inflater was a critical part of the engine's operation.
   这个充气器是发动机运作的关键部分。
3. 3. The inflater was responsible for keeping the tire pressure at the right level.
   这个充气器负责保持轮胎气压在适当的水平。