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automatic direction-finding equipment
技术	automatischer Funkpeiler (ADF, Boden); automatisches Peilgeraet (ADF, Bord)
automatic direction finding equipment
运输, 政治	automatische Luftfahrzeugpeilanlage
运输, 航空	automatisches Peilgerät
英语 词库
automatic direction-finding equipment
航空, 加拿大	An aircraft radio navigation system that senses and indicates the direction to a LF/MF non-directional beacon NDB ground transmitter. Direction is indicated to the pilot as a magnetic bearing or as a relative bearing to the longitudinal axis of the aircraft depending on the type of indicator installed in the aircraft. In certain applications, such as military, ADF operations may be based on airborne and ground transmitters in the VHF/UHF spectrum.