With the norm gray relational grade analytical method, this paper analyses the factors that influence the VMA-voids in the mineral aggregate-collapse.
利用范数灰关联度方法，分析了影响矿料间隙率(VMA)破坏的因素。
Norm gray relational grade (NGRG) is put forward based on the conception of norm, and its properties are discussed.
基于范数概念，给出了范数灰关联度及其性质。
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