4584| 21
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請(qǐng)教:磨床兩頂尖不一樣高,會(huì)造成被磨軸頸橢圓嗎? |
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點(diǎn)評(píng)
大俠能仔細(xì)講講嗎?
評(píng)分
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點(diǎn)評(píng)
一頭大一頭小,是錐度,不是圓度,
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點(diǎn)評(píng)
不懂其作用原理
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