平衡 へいこう てき誤差 ごさではありませんでした
e ikōte ki gosadewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 平衡的誤差

1. Was not a balanced error.; Was not a margin of error.

Past/Perfective
Negative
Polite
Formal Register
Computing