しゅ制御 せいぎょ装置 そうちじゃなかったです
shu seigyosōchijanakattadesu

Noun
Desu Copula

The polite, past negative form of 主制御装置

1. Was not the main control device.; Wasn't the main controller.

Past/Perfective
Negative
Polite
Casual Register
Computing