hot reflux condenser

例句：

1. 1.The hot-water reflux condenser is used to remove impurities from the steam before it enters the boiler.
   热水回流冷凝器用于在蒸汽进入锅炉之前去除杂质。
2. 2. The hot-air reflux condenser is designed to trap moisture in the air before it reaches the furnace.
   热空气回流冷凝器设计用来捕捉空气中的水分，防止其到达炉子时产生湿气。
3. 3. The hot-water reflux condenser is essential for maintaining the cleanliness of the steam system.
   热水回流冷凝器对于保持蒸汽系统的清洁至关重要。