直交 ちょっこう 平面 へいめん ではありませんでした
chokkōka heimenwadewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 直交化平面波

1. Was not orthogonalized plane wave.; Was not a plane wave that had been orthogonalized.

Past/Perfective
Negative
Polite
Formal Register