4911| 21
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大家好!如下圖所示,1是主動輪,2和4是張緊輪,3是從動輪。對嗎?謝謝! |
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點評
沒從動輪你在那玩自摸嗎
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點評
木工用的砂帶機。
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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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