The classic tool for measuring inequality is the Gini coefficient.

用于衡量不平等程度的经典工具是基尼指数。

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An optical "frequency comb" is a very precise tool for measuring different colors-or frequencies-of light.

光学“频率梳”是一种精确测量光的颜色或频率的工具。

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The classic tool for measuring inequality is the Gini coefficient. The higher it is, the less equal the society.

测量社会贫富均衡最典型的方法，就是吉尼系数(注四)；吉尼系数如果越高，表示社会贫富越不均。

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Law, in short, is a flawed tool for measuring scandal, just as it is often a clumsy tool for righting wrongs.

ECONOMIST: Al Gore falls to earth

Sentiment analysis is a commonly used tool for measuring what people are saying about a particular company or brand, but it has issues.

FORBES: With Online Reviews, "Good" Doesn't Cut It

But, as John Yinger, of Syracuse University, points out in the JEP symposium, regression analysis has drawbacks as a tool for measuring discrimination.

ECONOMIST: Race, sex and the dismal science