5172| 12
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這個齒輪為什么咬合不了呢 |
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點評
這個沒錯啊,小齒輪都是20齒數,大齒輪60
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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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