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如何在機械設計中選擇尺寸公差、形位公差和表面粗糙度等參數? |
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小公司吧,有固定成型的產品吧
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小黑屋|手機版|Archiver|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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