Gradenn.格拉登（音译名）graden.等级；年级；成绩；斜坡v.分级；评分；渐次变化graded homomorphism ring分次同态环grade and classification分等定级graded crushed aggregate级配碎石graded focal length lens梯度焦距透镜graded broken stone base级配碎石基层graded junction varactor缓变结变容二极管grade of body impairment伤残等级grade I arteriosclerotic动脉硬化Ⅰ级graded exercise training分级运动训练grade-pervasion method梯度渗透法