closed instruction loop

例句：

1. 1.The closed-loop control system is designed to improve efficiency by minimizing waste.
   闭环控制系统旨在通过减少浪费来提高效率。
2. 2.In the closed-loop feedback loop, the output of the system is used to adjust the input.
   在闭环反馈回路中，系统的输出用于调整输入。
3. 3. The closed-loop system has a built-in safety feature that prevents damage during operation.
   闭环系统具有内置的安全特性，可以在操作过程中防止损坏。