てい線量 せんりょう被曝 ひばくじゃありませんでした
teisenryōhibakujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 低線量被曝

1. Was not exposed to low-dose radiation.; Was not subjected to low-dose exposure.

Past/Perfective
Negative
Polite
Terminal Form