1741| 4
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正弦振动10的6次方(怎么设置) |
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发表于 2011-4-24 07:13
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对数扫频平均频率修正为:
F平均=(2000-30)/ln(2000/30)
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发表于 2011-4-26 20:53
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发表于 2011-4-26 21:02
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