greylyadv.灰的
greyadj.灰色的n.灰色vi.变成灰色=<美>gray
grey relevance method灰色关联分析
Grey-headed Lapwingn.灰头麦鸡
grey and slippery fur灰滑苔
grey Verhulst's model沙粒
Grey-cheeked Bulbuln.灰颊冠鹎
grey systems analysis灰色系统分析
Grey water reclaiming中水回用
Grey-tailed Tattlern.灰尾鹬
grey evaluation model灰色评价模型
grey ferruginous soil铁质灰壤土