One is an economic tool which puts a price on emitting greenhouse gases.
其中一项是经济手段，即给排放温室气体标上价格。
Gold may be honest, and tangible, but it is not nearly as powerful an economic tool as the more abstract forms of money that have taken its place.
黄金可能是诚实的，实在的，但作为金融工具，却远远没有取代其地位的抽象货币来的强有力。
In this paper, we use DEA method to evaluate industrial economic benefits, and present an effective technical and economic tool for policy making body to compare and evaluate economic systems.
本文使用DEA方法综合评价工业经济效益，为决策层对经济系统进行综合比较、评价提供了有效的技术经济手段。计算结果表明DEA方法用于工业经济效益综合评价是有效的，计算结果是合理的。
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