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。
This paper describes the methods of controlling the frame quality in terms of process design, mould design, control of deformation and defects from welding surface treatment, etc.
从工艺设计、胎具设计、控制焊接变形和缺陷、表面处理等各环节实行严格的品质控制，多年来生产出多种型号的车架全部为合格品。
In order to improve the quality of graduation project, we should put the quality management throughout the entire design process, and emphasis on overall quality management control in every stage.
将质量管理贯穿在毕业设计过程的全阶段，重视整个设计过程中各个阶段的全面质量管理监控，才能达到改善本科毕业设计质量的目的。
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