| On the base of investigating the situation of the side-producted coal gas recycle of Ma-steel, this paper compares the achievement of Ma-steel made in this area with those all over China by means of cluster analysis and principal component analysis of multivariate statistics, and makes it clear that Ma-steel is one of the second class.What's more, identifying the key factors affect the efficiency of the side-producted coal gas recycle by AHP,and giving advice to the improvement of the side-producted coal gas recycle of Ma-steel. |
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