5138| 16
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關于一個機械制動的問題 |
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點評
明白人!
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點評
保證好潤滑,計算好渦輪承受力。一般來說還是比較穩(wěn)定的機構的
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Archiver|手機版|小黑屋|機械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,浙公網(wǎng)安備33038202004372號 )
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