5289| 9
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帶傳動功率的概念,理解不是很到位 |
點評
超過效率降低,打滑,壽命低。
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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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