Utility theory puts this question differently: Who chose to live under those conditions, and why?
效用理论则从另一个角度提出这个问题：哪些人选择在这种环境下生存，为什么？
This will provide valuable data and theory foundation for the utility of this technology.
本研究为其工业应用提供有价值的数据依据和理论基础。
The utility model is the suitable teaching aid of a music theory.
该对照尺是一种很好的音乐理论教学用具。
The theory of value of science and technology is actually utility value theory.
科学技术价值论实际上是效用价值论。
The theory of value of science and technology is actually utility value theory.
科学技术价值论实际上是效用价值论。
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