美国电视与无线电无线电工作女性协会
American women in radio and television
中频无线电波
medium frequency radio wave
低频无线电频段
low frequency radio range
汽车无线电装置
autocar radio installation
应急无线电装置
radio emergency installation
宽带无线电中继系统
broadband radio relay systme
美国无线电中继联盟
3，5，7-Trihydroxy-3’，4’，5’-trimethoxyflavone
微波无线电中继链接
mircrwave radio relay link
微波无线电中继设备
microwave radio relay equipment