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電機轉速2800轉,電機皮帶輪5CM,機械皮帶輪要配多少CM?有沒有公式。 |
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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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