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关注：1
2013-05-23 12:21
求翻译：扩展不确定度U = 4.9dB，由标准不确定度u(x)=2.45dB及包含因子k=2得到。是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
扩展不确定度U = 4.9dB，由标准不确定度u(x)=2.45dB及包含因子k=2得到。
问题补充： |
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2013-05-23 12:21:38
Expanded uncertainty u = 2.8db, by the standard uncertainty u (x) = 1.4db and contains the factor k = 2 to get.
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2013-05-23 12:23:18
Expanded uncertainty dB U = 4.9 , the standard uncertainty u(x) = 2.45 and contains dB factor K = 2.
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2013-05-23 12:24:58
Expansion uncertainty U = 4.9dB, and contains factor k=2 by standard uncertainty u(x)=2.45dB to obtain.
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2013-05-23 12:26:38
Extended uncertainty of U=4.9dB, consists of a standard uncertainty u (x) =2.45dB and k=2 are contains factor.
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2013-05-23 12:28:18
正在翻译，请等待... 正在翻译，请等待... 正在翻译，请等待...
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