辐射体

例句：

1. 1. The car's engine is a powerful radiator that cools down the engine quickly.
   这辆车的引擎是一个强大的散热器，可以快速冷却引擎。
2. 2. The radiator in the car is easy to replace if it fails.
   如果汽车的散热器坏了，更换起来很容易。
3. 3.The radiator is responsible for distributing heat from the engine to the rest of the vehicle.
   散热器负责将发动机产生的热量分配到车辆的其他部分。