3793| 10
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怎么根據已知條件選電機 |
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點評
水泥
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點評
看銷軸的受力情況,剪切破壞?彎曲破壞?理論力學有計算方法,看一下就知道了。
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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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