This paper has a correlation study between 'SPEED "method and the present national standard, industrial tradition, which will play a direction role in our new jewellery evaluation industry."

本文将此法和现有国标和国内行业习惯作对比研究，将对国内刚刚兴起的珠宝评估行业产生指导意义。

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It is also important to note that the study found only a correlation, as researchers did not prove for certain that optimism leads to a longer life.

还值得注意的是，该研究只是发现了一种关联，因为研究人员并不能明确证明乐观与长寿有必然联系。

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Part of this analysis requires a correlation study to test if the asset class has unique risk.

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Flying Dog advertises its status as the favoured drink of the celebrated radical journalist Hunter S Thompson, and a 2012 study found a positive correlation between the concentration of microbreweries in a state and its likelihood to vote for Barack Obama.

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The study found a correlation between the increase in stress and the number of days holiday taken by executives in the countries concerned.

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