実装 じっそう標準 ひょうじゅんじゃありませんでした
jissōhyōjunjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 実装標準

1. It was not implemented as standard.; It wasn't the standard implementation.

Past/Perfective
Negative
Polite
Terminal Form
Computing