6009| 21
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請教:磨床兩頂尖不一樣高,會造成被磨軸頸橢圓嗎? |
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點評
一頭大一頭小,是錐度,不是圓度,
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點評
不懂其作用原理
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Archiver|手機版|小黑屋|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
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