heat-exchange cycle

例句：

1. 1. The heat-exchange cycle is crucial for maintaining thetemperature of a room.
   热交换循环对于保持房间的温度至关重要。
2. 2. In this experiment, weused a heat-exchange cycle to cooldown the water.
   在这个实验中，我们使用了一个热交换循环来冷却水。
3. 3. Theheat-exchange cycle is an essential partof the solar power system.
   热交换循环是太阳能系统的重要组成部分。