greylyadv.灰的greyadj.灰色的n.灰色vi.变成灰色=<美>graygrey relational grade灰色关联度grey relevance theory灰色关联理论grey spun rayon serge人棉哔叽坯grey scale transients灰度瞬变Grey Discrete Systems灰色离散系统grey number dimension灰数分形维Grey-cheeked Nunletn.灰颊小蓬头grey mould rot of pea豌豆灰霉病grey clusteringmethod灰色聚类法grey related analysis灰色关联分析