pole spring

例句：

1. 1. The car's suspensionsystem relies on a pole spring to absorbbumps and jolts.
   汽车的悬挂系统依靠杆弹簧吸收颠簸和震动。
2. 2.The new design uses a different type ofpole spring for improved stability.
   新设计使用了不同类型的杆弹簧以提高稳定性。
3. 3. The polespring is responsible for thecar's handling and ridecomfort.
   杆弹簧负责汽车的操控性和乘坐舒适性。