ちょう てい周波 しゅうはじゃありませんでした
chōteishūhajārimasendeshita

Noun
Desu Copula
no-Adjective

The polite, past negative form of 超低周波

1. It was not an extremely low frequency.; It wasn't ultra-low frequency.

Past/Perfective
Negative
Polite
Terminal Form