電磁 でんじ放射 ほうしゃ せんじゃありませんでした
denjihōshasenjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 電磁放射線

1. Was not electromagnetic radiation.; It wasn't electromagnetic radiation.

Past/Perfective
Negative
Polite
Terminal Form
Physics