tooth wheel rim

例句：

1. 1.The dentist used a tooth wheel rim to grind the enamel off the teeth.
   牙医用牙轮轮辋来磨掉牙齿上的珐琅质。
2. 2.The car's engine uses a tooth wheel rim to turn the pistons.
   汽车的发动机使用牙轮轮辋来转动活塞。
3. 3. The scientist designed a new tooth wheel rim that could reduce wear and tear on the teeth.
   科学家设计了一种新型的牙轮轮辋，可以减少对牙齿的磨损。