4138| 15
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一個鏈輪工程圖 |
點評
相貫線在國標中本來就有簡化畫法,
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點評
退刀槽,避讓鏈條,另外槽帶公差,似乎有其它作用
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Archiver|手機版|小黑屋|機械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
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