Gradea格拉代亚
graden.等级;年级;成绩;斜坡v.分级;评分;渐次变化
graded defense等级保护
grade teaching分级教学
grade analysis级别分析
grade forecast等级预测
grade by sized按大小分级
graded modules分次模
grade A nickel甲级镍
graded-index缓变折射率
grade labeling分等级
graded algebra分次代数