In this paper, its designing parameters, structural features, industrial tests and application results are presented.

本文着重介绍了该钻头的设计参数、结构特点以及工业性试验和使用效果。

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This paper, based on designing parameters of gold dredge and orebody's occurrence parameters, introduces the checking computation of structural size of gold dredge.

文中分析探讨了如何根据采金船设计参数与矿体赋存参数进行采金船结构尺寸验算。

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This paper presents a method for modifying the designing structural parameters of a bridge structure so that the bridge structure will freely vibrates at prescribed frequencies and modes.

本文研究了修改桥梁结构设计参数，使其自振周期和振型满足预先给定设计要求的动力特性修改过问题，提出了一种求解方法。

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