The structural and characteristic parameters are obtained by analysis and calculation.

通过分析计算得到各有关结构参数及特性参数。

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Structural characteristic of 20-hi rolling mill, roll configuration, working concept, the rolling force analysis, derivation and studying results are discussed this paper.

对20辊轧机构造特点、辊系配置、工作原理、轧制压力的分析、推导、计算进行了研究。

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In research and development of space antenna, the natural characteristic analysis and structural design optimization are very important.

在空间天线结构的研制过程中，结构固有特性分析和结构优化设计是非常重要的两项研究工作。

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