contraflow cooler

例句：

1. 1. The contraflow cooler is designed to improve the efficiency of the cooling process.
   逆流冷却器旨在提高冷却过程的效率。
2. 2.In this case, the counterflow cooler was used to cool down the hot air before it was released into the room.
   在这种情况下，使用逆流冷却器来在将热空气释放到房间之前进行冷却。
3. 3.The contraflow cooler was a crucial component in maintaining the temperature stability of the laboratory environment.
   逆流冷却器是实验室环境温度稳定性的关键组成部分。