楼主: myT9981
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关于齿轮等磨损滑动系数的问题 |
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发表于 2016-10-9 07:54
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发表于 2016-10-9 07:59
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发表于 2016-10-9 13:39
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发表于 2016-10-9 14:24
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点评
第二个公式中应是 (u+1)
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