Therefore, analysis and design of NCS has been a hot research problem in the control theory and control engineering area.

因此，网络控制系统的分析与设计成为目前控制理论与控制工程领域的热点研究课题。

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For the vast objects in industry control, the specific delay feature exists. It is valuable to study the control problem of the system with pure delay for control theory and control engineering.

工业控制中许多对象都具有纯滞后特征，对纯滞后系统的控制问题进行研究，具有理论意义和实际应用参考价值。

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From these years, study on control theory and fuzzy control have been becoming more and more interesting in lots of technological area on mathematics and engineering and so on.

近几年来，对于模糊理论及模糊控制的研究已经在数学以及工程等诸多科技领域引起人们越来越广泛的兴趣。

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