Grayckn.格雷克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 infiltration灰色浸润gray-prediction灰预测gray degeneration[医] 灰色变性(脊髓白质失掉髓鞘而成灰色)gray hepatization[医] 灰色肝样变Grayson's rulingsgray-value wave灰度波形图gray-connection灰色关联Gray Grass-Wrenn.灰草鹩莺gray scale change灰度变化grayscale voltage灰度等级电压