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On System's " Open-Close " Duality

Lu changming  
There is not anything in the world which has no relations with other things. Thus, there couldn't be any system which is so lone and close that it has no relation and material and energy exchange with other systems and environment. As its opposite, the open system couldn't exist alone. Therefore, the foundation on which Betalanffy's system theory was built is getting unreliable.In this paper the author proposed that all kinds of systems have " open-close " duality.
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