ちょう音波 おんぱ洗浄 せんじょうではありませんでした
chōon pa senjōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 超音波洗浄

1. Was not ultrasonic cleaning.; Wasn't ultrasonic cleaning.

Past/Perfective
Negative
Polite
Formal Register