3031| 6
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最近剛接觸到銑削螺紋,希望集思廣益 |
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點(diǎn)評(píng)
基礎(chǔ)的東西弄明白也是應(yīng)該的,怎么會(huì)沒有意義,。只是樓主的標(biāo)題不恰當(dāng)
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本版積分規(guī)則
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