cooling block

例句：

1. 1. The machine needs to be cooled down before it can operate properly.
   机器需要冷却才能正常运作。
2. 2.The engineer used a cooling block to prevent the engine from overheating.
   工程师使用了一个冷却块以防止发动机过热。
3. 3. During the manufacturing process, the cooling block helps to maintain the temperature of the workpiece.
   在制造过程中，冷却块有助于保持工件的温度。