楼主: 阿连0621
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φ25k7,φ3H7T6这应该是公差吧,应该怎么读呢? |
发表于 2013-7-8 23:25:36
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发表于 2013-7-11 10:58:11
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发表于 2013-7-11 13:35:35
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