4181| 3
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關于公差“零”的問題 |
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點評
正解
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點評
那我用卡尺或千分尺有什么區(qū)別?
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Archiver|手機版|小黑屋|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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