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有効 ゆうこうけた演算 えんざんじゃなかった
yūkōketaenzanjanakatta

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Noun
, 
Da Copula

The past negative form of 有効けた演算

1. Was not an effective operation.; Was not a valid calculation.

Past/Perfective
, 
Negative
, 
Computing

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有効けた演算じゃなかった

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