美国电视与无线电无线电工作女性协会
American women in radio and television
无线电测量装备
radio measurement equipment
电参量测量
Measurement of electric parameters
Electric parameter metering
超越地平线无线电通讯
radio communication beyond the horizon
船岸无线电电传打字机
ship-shore radio teletypewriter
船用无线电测向仪
marine radio direction finder
单向无线电测向仪
unidirectional radio direction finder
调频无线电测高计
frequency modulation radio altimeter
海岸无线电电传打字机
shore radio teletypewriter