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設計一個往復運動機構 |
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點評
我要的是機構,而且拉絲機也無法實現我的功能
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點評
互相學習,互相進步
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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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