3609| 3
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沖孔所需壓力的計算公式,求助 |
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點評
有限元軟件可以計算
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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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