The gray situation decision method in the theory of gray system is used for the optimal selection of environmental investment project. By practical analysis,this method shows to be easy,convenient and of high precision. The results correspond to the objective reality.
Abstract This article introduces the methods of grey situation decision states that the grey situation decision is a simple, practical and effective means to optimize the technological plan of me-chine production by examples.
Data from sown pasture sheep systems for 1990~1999 were scaled and measured using the grey condition decision method on Yunnan Sheep Breeding Farm, efficiency estimate numerical value of chief system and its sub systems (factors) were established.