radiator hood ledge

例句：

1. 1.The car's radiator hood is damaged, so it needs to be replaced.
   这辆车的散热器罩损坏了，需要更换。
2. 2. The mechanic fixed the radiator hood and made sure everything was working properly.
   技师修理了散热器罩并确保一切正常工作。
3. 3. The radiator hood is a crucial part of the engine cooling system.
   散热器罩是发动机冷却系统的关键部分。