周波 しゅうは すう分割 ぶんかつ多元 たげん接続 せつぞくでした
shūhasūbunkatsutagensetsuzokudeshita

Noun
Desu Copula

The polite past form of 周波数分割多元接続

1. It was frequency-division multiple access.

Past/Perfective
Polite
Telecommunications