greyingadj.灰白的动词grey的现在分词.greyadj.灰色的n.灰色vi.变成灰色=<美>grayGrey-bellied Spinetailn.灰腹针尾雀grey-system prediction灰色系统预测grey kid head skin plate青小山羊头皮褥子grey dynamic model group灰色动态模型群grey relation projection灰色关联投影grey clustering analysis灰色聚类分析grey corelation analysis灰色关联度分析greycorrelation analysis灰色关联分析grey diagnosing approach灰色关联分析Grey-headed Parrotbilln.灰头鸦雀