格子 こうし欠陥 けっかんじゃなかったです
kōshikekkanjanakattadesu

Noun
Desu Copula

The polite, past negative form of 格子欠陥

1. Wasn't a lattice defect.; Wasn't flawed.

Past/Perfective
Negative
Polite
Casual Register
Crystallography