残留 ざんりゅう ねつ除去 じょきょじゃなかったです
zanryūnetsu jokyojanakattadesu

Noun
Desu Copula

The polite, past negative form of 残留熱除去

1. Wasn't residual heat removal.; Wasn't removing residual heat.

Past/Perfective
Negative
Polite
Casual Register