求翻译：本文针对热轧带钢卷取温度反馈控制系统中的时滞问题，提出在原有PID控制的基础上进行系统控制改造方案。首先建立了热轧带钢层流冷却精冷区反馈控制闭环系统模型，其次在此模型的基础上，引入线性算子半群的谱分解理论，即传统PID控制结合延时控制的谱分解理论，解决热轧带钢卷取系统因空间距离而产生的时滞问题，一方面降低生产改造的成本 ，另一方面提高产品的性能。最后通过仿真验证了所提改造方案的有效性。是什么意思？

In this paper, hot strip coiling temperature feedback control system in the time lag problem, proposed in the original PID control system based on control of rehabilitation programs. First, the establishment of fine hot strip laminar cooling loop feedback control system cooling zone model, followed

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This article takes in the temperature feedback control system in view of the hot strip volume the time lag question, proposed carries on the systems control transformation plan in

This paper focuses on hot strip coiling temperature feedback control systems with time-delay issue, raised in the original system based on PID control of reconstruction scheme of control. First hot strip laminar cooling model precision closed-loop feedback control system in cold area, followed on th