graden.等级;年级;成绩;斜坡v.分级;评分;渐次变化
grade range职等范围
grade limit坡度限制
grade angle坡度角
graded down压低等级
graded fare区域制
graded role分级角色
grade index年级成绩总评
graded yarn高档纱
graded base坡度基区
graded seed分级种子