Using concept of information entropy to express quality of energy-mass stream, to announce nature of artificialsystem simulating natural system is the subject of this paper.
本文引用信息熵的概念来表示能量—物质流的品质，以揭示人工系统模拟自然系统的本质。
2
Artificial neural network is one of artificialsystem, which simulates structural and functional characteristics of biological neural network resorted to engineering technological means.
而神经网络则是用工程技术手段模拟生物神经网络的结构特征和功能特征的一类人工系统。
3
In the paper, the human being, in an abstract sense, is deployed as an important component of the artificialsystem, whose characteristics and dynamic reciprocity with the environment are studied.