gradedadj.等级的；按等级的；梯级的动词grade的过去式和过去分词.graden.等级；年级；成绩；斜坡v.分级；评分；渐次变化graded sand gravel级配砂砾graded Lie algebra阶化李代数graded index fibre分级检索纤维graded broken slone级配碎石graded optimization分级优化grades for building住房等级graded homomorphism分次同态graded illumination分级照明grade of evaluation等级评定graded potentiomter非线性电势计