direction-finder antenna测向天线;测向器天线
radar direction-finder雷达测向仪
night direction-finder夜间探向设备
direction-finder station测向站
frame direction-finder[通信] 框形测向器
acoustic direction-finder声响探向器
direction-finder探向器;翻译;定向器英语
direction-finder set测向机
direction-finder receiver无线电测向接收机
N（名词） a highly directional aerial system that can be used to determine the direction of incoming radio signals, used esp as a navigation aid (尤用于导航设备中的)无线电测向仪 (Abbreviation D/F, DF)