43607| 53
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求計算螺栓預(yù)緊力矩的計算公式和原理 |
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點評
請查閱機械工業(yè)出版社的機械設(shè)計基礎(chǔ)第十三章
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小黑屋|手機版|Archiver|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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