From the Pareto optimal solution a relation curve between control performance and process margin was obtained, and the higher the control performance was required, the more the margin was needed.

• 求解得到非劣解集，绘制关于控制性能指标和工艺指标的关系曲线，发现系统对控制器性能的要求愈高，所需要的裕量应愈大。