gray’s association degree

section s-s s-s

gray association degree

gray association degree making method

gray association degree theory

SⅠSⅡSⅢ syndrome

Bragg-Gray’s principle

davy`s gray

Den’s gray relationship

Gray Association

gray association analysis

gray association entropy

gray association evaluation

gray association rule

gray association theory

gray degree

gray degree of correlation

Gray’s paradox

Gray’s variable norm

payne`s gray