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The character of lightweight steel structure portal frame was introduced.
对门式刚架轻型钢结构的组成特点进行了简单介绍。
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Finally, the lightweight optimization design on rear frame is carried on.
论文还对后机架进行了轻量化优化设计。
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Finally, the lightweight optimization design on rear frame is carried on.
论文还对后机架进行了轻量化优化设计。
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