under-表示“在 ... 下; 次于”之义
underprep.低于;在 ... 下;在 ... 内;在 ... 控制下adv.在昏迷中;在 ... 下adj.下面的;从属的;少于的
under the same coveradv.在同一封信中
under the hoof of sbadj.被践踏
underdamped response欠阻尼响应
Under-ground water地下水
under film inigation膜下滴灌
underapplied expense少分配的费用
under-pricing rate抑价率
under the convention根据协定
under water ordnanac水中兵器
underexpanded nozzle欠膨胀喷管