Then discovers using the Gray Relation Analysis method corrodes the influence big factor to the casing steels, in order to take the effective protective measure.
然后利用灰色关联分析法找出对套管腐蚀影响较大的因素，以便采取有效的防护措施。
This paper analyses the principal and subordinate relationship between groundwater pollution indexes by using pollution load ratio and gray relation analysis method.
运用污染负荷比和灰关联法递阶分析了矿山地下水污染物的主从关系，确定了矿山地下水的主要污染指标；
This paper analyses the principal and subordinate relationship between groundwater pollution indexes by using pollution load ratio and gray relation analysis method.
运用污染负荷比和灰关联法递阶分析了矿山地下水污染物的主从关系，确定了矿山地下水的主要污染指标；
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