graylagn.[鸟]灰色雁(雁的一种)grayadj.灰色的；暗淡的n.灰色；暗淡v.变灰色；使 ... 变灰色Grayn.格雷(男子名)gray- scale morphology灰度形态学Gray's oral reading test高启gray-scale compression灰度级压缩gray association entropy灰色关联熵gray integral projection灰度积分投影Gray clustering analysis灰色聚类分析gray interconnect degree灰色关联度Gray-capped Tyrannuletn.灰顶小霸鹟gray relational analysis灰色关联分析Gray matter degeneration灰质变性