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讨论一下,为什么high poly电阻是负温度系数? |
发表于 2007-12-5 20:28:17
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发表于 2007-12-6 15:24:08
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发表于 2007-12-6 15:37:07
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发表于 2007-12-7 11:21:32
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发表于 2007-12-7 14:44:35
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