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[讨论] 奇怪的现象:冷速越快,淬火硬度越低 |
发表于 2011-2-15 21:48:16
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发表于 2011-2-16 09:57:42
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发表于 2011-2-19 14:23:51
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发表于 2011-2-22 22:06:00
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发表于 2011-2-23 10:26:42
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