This means the falling cost and rising efficiency in the retrieval and analysis of information, makes the massive generation and application of knowledge a reality.

这意味着获取和分析过程都成本大为降低，效率成倍增加，使人类对知识与资讯的大规模发掘运用成为可能。

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A new way to study investigation is to make qualitative and quantitative analysis, study and evaluation to the investigation efficiency from the Angle of economic cost.

从经济成本角度定性和定量分析、研究和评价侦查效益，是侦查学研究的新方法之一。

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For a long time, studies on the cost-efficiency of library and information take qualitative analysis as the core, there are less quantitative researches.

长期以来，对图书情报成本效益的研究以定性分析为主，较少定量的研究。

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