美国电视与无线电无线电工作女性协会
American women in radio and television
无线电噪声特性
radio interference characteristics
宇宙无线电噪声记录仪
cosmic radio noise recorder
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
定向无线电声呐浮标
directional radio sonobuoy
高频无线电声测器
high frequency radio acoustic sounder
海岸无线电电传打字机
shore radio teletypewriter
可转环形天线无线电罗盘
rotatable-loop radio compass