relay spring

例句：

1. 1. The car's suspension system relies on a relay spring to absorb shocks.
   汽车的悬挂系统依靠一个接力弹簧来吸收冲击。
2. 2. In the old days, people used to rely on relay springs for their transportation needs.
   在旧时代，人们曾经依赖接力弹簧来满足他们的交通需求。
3. 3. The engineer designed a new relay spring to improve the vehicle's handling performance.
   工程师设计了一种新型接力弹簧，以提高车辆的操控性能。