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grade debris basement级配碎石基层grade cut-off point分数线graded time lag relay可调整延时继电器graded-density skin变密度表层grade specific gravity分选比重grade of concentration平路机, 平土机Grade-Belt structure圈层结构grade-based teaching分层教学grade climbing ability爬坡能力grade-point averages等级点均值