2881| 9
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请教高手,看下这个国外齿轮的外径是怎么算出来的 |
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发表于 2009-12-1 15:03
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发表于 2009-12-1 15:28
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发表于 2009-12-1 20:56
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发表于 2009-12-2 10:14
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发表于 2009-12-3 12:53
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