2677| 14
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一個鏈輪工程圖 |
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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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小黑屋|手機版|Archiver|機械社區(qū) ( 京ICP備10217105號-1,,京ICP證050210號,,浙公網(wǎng)安備33038202004372號 )
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