5612| 19
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CNC難題 |
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點評
對,。封閉的輪廓四周都有了相應的約束,增加抵抗變形的能力,。
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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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