assistant cylinder

例句：

1. 1. The new car has an assisted cylinder that makes it easier to start.
   这辆新车有一个辅助气缸，使启动更容易。
2. 2. The doctor uses a cylinder to help the patient breathe.
   医生使用一个气缸帮助病人呼吸。
3. 3. The engineer designed the cylinder to withstand high pressure.
   工程师设计了这个气缸以承受高压。