Tunnel ventilation process is approximately a system of time lag of first order, real time control of wind pressure in tunnel pipe is adopted self-tuning fuzzy PID.

隧道通风过程可近似认为是一个一阶时滞系统，系统采用自整定模糊pid对隧道管网的风压进行实时控制。

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The water supply process is approximately a system of time lag of first order, real time control of pressure in pipe is adopted self-tuning fuzzy PID.

由于供水过程可近似认为是一个一阶时滞系统，系统采用了自整定模糊pid对管网的压力进行实时控制。

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An algorithm for the compensation of a first order pure lag system is discussed in this paper.

本文探讨了一阶纯滞后系统补偿的一种算法。

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