The experimental result indicates that the modified PSO increases the ability to break away from the local optimum.

实验结果表明，改进后的粒子群算法防止陷入局部最优的能力有了明显的增强。

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Through the theoretical and experimental study on rock breaking by submerged water jetting, taking rock breaking efficiency as goal function, the optimum jetting pressure was acquired to break rock.

本文通过对淹没射流破碎岩石的理论及实验研究，以破岩效率作为目标函数，得到射流破岩的最优压力条件。

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Intuitive analysis and variance analysis are used to get the changing trend of the work-to-break and the optimum parameters. And then the tensile mechanism of the paper making felt is discussed.

运用直观分析法和方差分析法得出了断裂功的变化趋势及最优参数，并对造纸毛毯的拉伸机理进行了探讨。

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