動作 どうさ有効 ゆうこう期間 きかんじゃありません
dō sayūkōki kanja arimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 動作有効期間

1. It is not within the valid operation period.; It is not within the effective period.

Negative
Polite
Terminal Form
Computing