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../外文原文.doc [48 KB]
../外文翻译.docx [38.24 KB]
../译文.doc [41 KB]
大链轮A3.dwg [208.06 KB]
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../打印原稿.zip [1.93 MB]
../折叠式自行车的整体设计说明书.docx [1.58 MB]
折叠式自行车的整体设计任务书.docx [24.22 KB]
脚踏曲柄A2.dwg [408.95 KB]
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车轮轴承A3.dwg [109.83 KB]
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