48840| 13
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線切割的精度一般為多少(書上說是“尺寸精度可達(dá)0.01,表面粗糙度可達(dá)Ra1.6”)?線切 |
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評(píng)分
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點(diǎn)評(píng)
謝謝,受教了
評(píng)分
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