greytinn.灰锡greyadj.灰色的n.灰色vi.变成灰色=<美>graygreyconstellation cluster analysis因子分析grey linen cotton blended sheeting麻棉混纺床单布grey situation decision - making灰色局势决策greyblue pericampylus stem or root黑风散grey polyester viscose lawn blended涤粘混纺坯布grey comprehensive relational grade灰色综合关联度grey relative comprehensive degrees灰色关联度grey relationship analysis approach灰色关联分析法grey multiple step error correction灰色多步误差校正grey relational clustering analysis灰关联聚类分析法