The reliability analysis of the box type telescopic jib plays a key role in the railway crane design.

箱形伸缩式吊臂的可靠性分析是铁路起重机设计中的重要部分。

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With structural design of the hoist jib, analysis and calculation are made in such aspects as material, type of the box type section, and the local stability of the web plate.

结合起重机吊臂的结构设计，从材料、箱形截面的形式及其腹板的局部稳定性等方面对伸缩臂进行了分析、计算。

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With structural design of the hoist jib, analysis and calculation are made in such aspects as material, type of the box type section, and the local stability of the web plate.

结合起重机吊臂的结构设计，从材料、箱形截面的形式及其腹板的局部稳定性等方面对伸缩臂进行了分析、计算。

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