radiator cap

例句：

1. 1.The car's radiator cap was damaged in the accident.
   在事故中，汽车的散热器盖受损了。
2. 2. The mechanic replaced the radiator cap with a new one.
   技师用一个新的散热器盖替换了旧的。
3. 3.The radiator cap is designed to keep the engine cool during long drives.
   散热器盖的设计是为了在长途驾驶期间保持发动机冷却。