Sampling variability explains only a portion of the overall uncertainty in a modelled estimate.

抽样变异性仅仅解释了模型估测中整个不确定性的一部分。

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Real flow experiments show that the overall uncertainty of the improved facility is better than 0.05%.

实流实验表明改进后装置整体不确定度优于0.05%。

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When the overall economic climate improves so that uncertainty about the prospects of companies is no longer so pervasive, that will provide another reason for some investors to retreat from gold.

随着整个经济大环境的改善，人们对于企业前景的将不再那么悲观，一些投资者就有足够的理由撤出黄金市场。

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Overall, political uncertainty is likely to keep the EUR vulnerable in the near-term.

FORBES: Vulnerable Euro Holds Steady -- Now What?

Meike Escherich, principal analyst at Gartner, attributes the overall performance to economic uncertainty in the region, as well as lackluster demand in the wait for Windows 8 machines.

ENGADGET: Gartner reports Western Europe desktop shipments down, portable PCs up in Q2 2012

This underscores the keener European investor uncertainty regarding the overall health of the European Union.

FORBES: P.M. Kitco Metals Roundup: Solid Gains For Gold On More Technical Buying, Bullish Outside Markets