略語大辞典 [C] 33 FDM frequency division multiplex 周波数分割多重化. 多重通信方式. frequency division multiplex; a method of deriving two or more simultaneous, continuous channels from a transmission medium connecting two points by assigning separate portions of the available frequency spectrum to each of the indiv 丸善「略語大辞典」JLogosID : 11874694