grade A甲级
graden.等级;年级;成绩;斜坡v.分级;评分;渐次变化
graded plan architecture分级规划体系
grade-equivalent scale等级相等量度
Grade two A/O process二级A/O法
graded aggregate mixture级配混合集料
graded insulated winding分级绝缘绕组
graded broden stone base级配碎石基层
graded polymer materials高分子梯度材料