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The synthesis provides a practical step by step procedure such that the influence from the disturbance to the controlled output can be arbitrarily small subject to nonlinear uncertainties, and internal system is asymptotically stable.

该文的综合方法提供了可行的设计控制器的步骤。所设计的控制器，能保证闭环系统在容许的不确定性条件下，从干扰到输出的影响可能任意地小，并能保证系统是内稳定的。

Step 1 is good, and step 5 is good, but steps 2-4 seem arbitrary.

第1步是好的，第5步是好的，但似乎任意步骤2-4 。

Third chapter illustrate the design scheme for justification development system, amalgamation steer the argumentum;And code design in the detailed design sum the database design of whole system;Recommended the detailed design information of sum of the shuttering cake structure of the aetioporphyrin system;Analyzed the library to manage the system's appliance demand, according to the database design theory proptosis of one-step and one-step earth joint system demand manual, local ER general view, overall situation ER general view, system relation modal, leaven the modal;Arrangement in parallel proptosis the valve key source of the said system code in the procedure the amalgamation commit the interpretation, justification.

第三章说明开发系统的设计方案，并进行论证；以及详细设计中的代码设计和整个系统的数据库设计；介绍了本系统的模块结构和详细的设计信息；分析了图书馆管理系统的应用需求，按照数据库设计理论一步一步地给出了系统需求说明书、局部ER图、全局ER图、系统关系模式，子模式；并列出了该系统的关键源程序中的代码并做解释、说明。

In the second chapter, elementary theories and ideas of one step forming inverse approach were described and warped modification method, implemented by Cook, was introduced into one step forming simulation and based on idea of surface spreading; new quadrilateral element modification arithmetic was put forward. By spreading warped quadrilateral onto plane in local coordinate system, a plane quadrilateral element whose shape and area were equal to original warped quadrilateral element was gotten and internal force vectors of four nodes and stiffness matrix of elements were improved to increase precision of simulations on this plane element.

第二章从一步成形逆有限元法的基本理论和思想出发，将Cook基于弹性理论的四边形单元的翘曲修正算法引入基于塑性的一步成形，并且基于曲面展开的思想，本文提出一种新的四节点单元翘曲修正方案，通过把翘曲的单元展开的方法在局部参考系中得到一个与实际翘曲单元的形状与面积非常接近的平面单元，在该平面单元中进行单元刚度及内力向量的计算，进一步改善模拟结果的精度。

Simulation results show the feasibility and validity of the improved arithmetic by approaching complex nonlinear function step by step.

仿真研究进一步验证了该方案的可行性和有效性。

This essay deduces the power sum formula of an arbitrary arithmetic progression step by step on the basis of Euler-Maclaurin formula,and then achieres the compute formula of natural number power sum -∑ni=1i m.

前n个自然数的方幂和，∑ni=1im是一个古老的难题。

Through the investigation into the inventory and transportation cost of Jinsha pharmacy, the article proposed the calculation formulas of the optimum purchase sum. By using step-by-step planning thoughts, the articled put forward the planning ideas on how to build perfect outlets net in Hunan province. Simultaneously, it optimized

通过对金沙大药房的存货持有成本和运输成本进行研究，提出了金沙大药房的最优药品采购金额的计算公式，运用分层规划思想，给出了金沙大药房在湖南境内如何建立完善的经营网点的规划思路，同时，对金沙大药房市区内药品配送路径进行了优化，得到最短路径，并通过实例予以验证

In order to increase the computation efficiency, artificial dissipation, variable time step and enthalpy damping acceleration techniques are used in the five-step Runge-Kutta time stepping.

在定常的计算中，采用5步Runge-Kutta时间推进，引进人工耗散，应用了当地时间步长、焓阻尼等加速收敛技术。

"One step at a time," Arum said,"one step at a time."

"一步一个脚印，"阿鲁姆说。

Through step-by-step selection of 20 financial indicators, it is found that net interest rate of total assets, assets-liabilities ratio, and accounts receivables turnover are effective predictors of financial failure at listed companies; overall, the model has an accuracy rate of 86.7% in prediction.

经过对20个财务指标的逐步筛选，实证结果发现，总资产净利率、资产负债率和应收账款周转率对上市公司财务失败具有显著的预测作用；模型的总体预测准确率为86.7%。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失