平均 へいきん故障 こしょう時間 じかんじゃありませんでした
heikinkoshōjikanjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 平均故障時間

1. Was not mean time between failures.; Was not the average failure time.

Past/Perfective
Negative
Polite
Terminal Form
Computing