Subsistence % economy era, under a self-sufficient peasant economy, people and goods Exchange in the world by accident, consumer relationsofdependence does not form a common people.
This paper, in the first place, attempts to analyse the functions of that subsystem and various relationsofdependence and interaction by means of system theory, information theory and cybernetics.
本文利用系统论、信息论和控制论的方法,首先试图分析该子系统的功能和各种相互依赖相互作用的关系。
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The dependenceof frequency relations on pressure and modulation amplitude is similar with other laboratories.