残留 ざんりゅう ねつ除去 じょきょではありませんでした
zanryūnetsu jokyodewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 残留熱除去

1. Was not residual heat removal.; Was not removing residual heat.

Past/Perfective
Negative
Polite
Formal Register