12267| 10
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關于GB/T1804-2000中f、m、c、v的選擇問題 |
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點評
機械公差安卓版,各種加工方式精度都有,木材。。?倒是,看6樓了
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點評
機械公差安卓版,各種加工方式精度都有,,看6樓了
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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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