楼主: 北风之神
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容忍了太多差不多就行才导致机械精度水平比国外差那么多? |
发表于 2015-12-11 17:47:21
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发表于 2015-12-11 17:48:25
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发表于 2015-12-11 17:49:08
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发表于 2015-12-11 21:49:06
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发表于 2015-12-14 18:00:13
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发表于 2015-12-14 18:00:28
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