The math model and control system design after modeling are the base and key point to process control system analyses, design, debug and obtain the higher control quality.

掌握被控对象的数学模型和建模后控制系统的设计，是过程控制系统分析、设计、调试和获得较高控制品质的基础和关键。

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Then the author presents the means on how to design the control point of files, information and quality recorders, and the key problems and the control means of the control point setting.

提出了文件和资料以及质量记录控制管理的控制点的设置以及设置控制点的关键问题和控制方法。

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The box girder concrete casting key point, layout of equipment and casting time control are analyzed on the base of construction performance of high quality maritime works concrete.

在研究高性能海工混凝土的施工性能的基础上，分析了箱梁混凝土浇筑关键点、设备配置和浇筑时间控制等。

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