dry expansion cooler

例句：

1. 1.The dry expansion cooler is used to cool the air before it reaches the furnace.
   干燥膨胀冷却器用于在空气到达炉子之前冷却空气。
2. 2. The dry expansion cooler is an essential component of the cooling system in a power plant.
   干燥膨胀冷却器是发电厂冷却系统的一个必要组成部分。
3. 3.The dry expansion cooler is designed to maintain a constant temperature and humidity level in the air.
   干燥膨胀冷却器设计用来保持空气中的温度和湿度恒定。