放射 ほうしゃ せん発生 はっせい装置 そうちじゃなかったです
hōshasenhasseisōchijanakattadesu

Noun
Desu Copula

The polite, past negative form of 放射線発生装置

1. Wasn't a radiation-generating device.; Wasn't a radiation source.

Past/Perfective
Negative
Polite
Casual Register