3053| 3
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請教:“(磨削)徑向進給量減小,能按一定比例降低Ra值”中的“一定比例”是多少? |
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小黑屋|手機版|Archiver|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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