radiator block

例句：

1. 1. The car's engine was overheating due to the radiator block.
   由于散热器堵塞，汽车发动机过热。
2. 2.He had to replace the radiator block to fix the problem.
   他不得不更换散热器来解决问题。
3. 3. The mechanic checked the radiator block and found a small leak.
   机械师检查了散热器并发现一个小泄漏。