spring bushing

• 弹簧衬套

spring bushing的用法和样例：

例句

1. The rotating slip ring is insulated from the shaft by a laminated plastic bushing.
   旋转滑环是用片状塑料衬套与轴绝缘的。
2. The piston bushing materials is the key problem of automobile engine technology.
   活塞衬套材料是发展汽车发动机技术的关键问题。