这就意味着电线要成回路。

That means the wires will have to loop.

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如果能成功地把生产计划与控制（PPC）设计成具有匹配能力的调节回路，则可以持续改进企业的后勤保障效率。

The logistical efficiency of an enterprise can be continually improved if the Production Planning and Control(PPC) can be designed as an adaptive control loop.

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本文分析了城市水管理信息系统(CWMIS)的运行回路和层次结构，并将管理对象分解成若干子系统。

The operational circle and hierarchy structure of city water management information system (CWMIS) are analyzed herein and CWMIS is divided into several subsystems.

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