levellyadv.水准地；不动心地leveln.数量；等级；水平；水平线adj.平的；等高的v.弄平；夷平；对准adv.<废>水平地level modulation电平调制level-contrast节约水平level of control管理水平levelling device调平装置Level correcting电平校正levels of system制度层次leveling anomaly水准异常levelling course水平层level into plain平整成平地level off/out稳定; 持平; 整平; 弄平; 水平飞行