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機械小白請教:做一個架子,上面可承載2t 重量的物體 |
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點評
哈哈哈 你要笑死我
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Archiver|手機版|小黑屋|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
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