曲線 きょくせん座標 ざひょうじゃなかったです
kyokusenzahyōjanakattadesu

Noun
Desu Copula

The polite, past negative form of 曲線座標

1. Wasn't curvilinear coordinates.; Wasn't a curved coordinate system.

Past/Perfective
Negative
Polite
Casual Register