4406| 9
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滾子鏈包裹角度過大多什么不良影響? |
點評
這個太夸張了。鏈傳動,極限做到節圓的切線方向。
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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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