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[修磨镀层] 关于滚刀铲磨问题 |
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发表于 2011-4-7 06:40
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谢谢你了,我在分析一下
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发表于 2011-4-8 07:23
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发表于 2011-4-8 19:27
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以前有人申请过专利,只是对滚刀修磨后的精度比阿基米德高的多
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发表于 2011-4-12 22:14
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