基本 きほん周波 しゅうは すうじゃありませんでした
kihonshūhasūjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 基本周波数

1. It was not the fundamental frequency.; It wasn't the basic frequency.

Past/Perfective
Negative
Polite
Terminal Form
Physics