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公差可以是負(fù)值么?應(yīng)該不對(duì)吧? |
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點(diǎn)評(píng)
樓主說得對(duì)?,樓主發(fā)現(xiàn)真理!!!
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小黑屋|手機(jī)版|Archiver|機(jī)械社區(qū) ( 京ICP備10217105號(hào)-1,京ICP證050210號(hào),浙公網(wǎng)安備33038202004372號(hào) )
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