5900| 24
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懇請大蝦給一個計算公式 |
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點評
你這個傳動效率還挺高!100%的傳動效率的齒輪哪里有?
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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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