4807| 8
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負變位齒輪和標準齒輪的嚙合有什么影響 |
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點評
贊一個
評分
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點評
說錯了,,重合度大于1
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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,,浙公網安備33038202004372號 )
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