closed circuit cell

例句：

1. 1.This closed-circuit cell is used to monitor the temperature of the environment.
   这个闭合电路单元用于监测环境的温度。
2. 2.The closed-circuit cell was designed to improve the efficiency of the energy conversion process.
   这个闭合电路单元被设计用来提高能量转换过程的效率。
3. 3. The closed-circuit cell technology has been widely applied in various fields, such as electronics and communication.
   闭合电路单元技术已被广泛应用于电子和通信领域。