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齿轮断齿,能看出是裂纹还是过载造成的么? |
发表于 2015-10-30 08:48
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发表于 2015-10-30 10:36
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发表于 2015-10-30 15:15
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发表于 2015-10-30 15:58
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发表于 2015-12-28 19:58
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发表于 2015-12-31 06:59
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发表于 2016-1-3 14:37
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