2702| 3
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有做機械密封中彈性元件疲勞分析的嗎?求助 |
點評
我們正在搞幾款潛水泵的機械密封,當然能
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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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