8778| 12
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形狀精度和位置精度關系確認 |
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點評
這個提法,夸大地說,那么是個S面,只要符合平面輪廓基本要求也行。
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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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