This paper firstly introduces background, conception, research idea, present situation and progress at home and abroad of e-cash technology.
本文首先介绍电子现金产生的背景、概念、研究思路、国内外现状与进展。
The conception, research methods and objective assessment parameters of auditory spatial impression in room sound field are reviewed.
综述了与室内声场空间印象相关的基本概念、研究方法以及客观评价参数。
The conception, research methods and objective assessment parameters of auditory spatial impression in room sound field are reviewed.
综述了与室内声场空间印象相关的基本概念、研究方法以及客观评价参数。
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