降着 こうちゃく円盤 えんばんじゃありませんでした
kōchakuembanjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 降着円盤

1. It wasn't raining discs.; It wasn't falling in discs.

Past/Perfective
Negative
Polite
Terminal Form
Astronomy