5140| 10
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美國齒輪圖紙求教 |
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點評
這2個值再齒輪的加工制造中很重要嗎?為什么記得機械原理課中沒有提到過。。。
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點評
what??
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點評
學(xué)習(xí)了!
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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(wǎng)安備33038202004372號 )
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