spiral tube heat exchanger

例句：

1. 1.The spiral tube heat exchanger is used to transfer heat between two fluids.
   螺旋管换热器用于两种流体之间的热量传递。
2. 2.The spiral tube heat exchanger is an effective way to improve the efficiency of a heating system.
   螺旋管换热器是一种提高供暖系统效率的有效方法。
3. 3. The spiral tube heat exchanger is widely used in industrial processes, such as chemical and metallurgical plants.
   螺旋管换热器在化工和冶金厂等工业过程中得到了广泛应用。