短語詞組短語frequency y division 分頻;頻率劃分Frequency -Division Multiplexing 頻分復用Frequency shift division duplexing 分頻位移雙工frequency y division multiplex 頻分多路轉(zhuǎn)換;頻分多路傳輸frequency difference division circuit 分頻電路frequency difference division step 分頻級frequency -division processing 分頻處理frequency difference division 頻率劃分 返回 frequency division