In this paper, the basic concept of parametric design technology is described, and the design method of prestressed tendons is analyzed.

论述了参数化设计技术的基本概念，对预应力钢束设计的方法进行了分析研究。

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Improving on the efficiency of feature editing has been regarded as the key technology of parametric design system.

提高特征编辑的效率是基于特征的参数化系统的关键技术。

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The paper introduces the method and procedure of using ADS technology to combine design calculation and parametric plotting as one unit during designing the roller bending machine.

介绍了应用ads技术在卷板机设计中有关设计计算与参数化绘图融为一体的方法和步骤。

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