2856| 3
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浮動齒輪和齒條,可以不以用于動力結合和分離的場合 |
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點評
沒有看懂,能否畫個草圖交流下
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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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