2841| 10
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雙尺寸公差的標注問題 |
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點評
人家不是打個問號嗎,人家沒用肯定語氣
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小黑屋|手機版|Archiver|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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