closed cycle cooling

例句：

1. 1. Theclosed-loop cooling system in the factory is highly efficient.
   工厂中的闭环冷却系统非常高效。
2. 2. The closed-loop cooling system helps to reduce energy consumption.
   闭环冷却系统有助于减少能源消耗。
3. 3. The closed-loop cooling system can be used for various applications, such as refrigeration and air conditioning.
   闭环冷却系统可用于各种应用，如制冷和空调。