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時効 じこう硬化 こうかでした
jikōkōkadeshita

敬
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Noun
, 
Desu Copula

The polite past form of 時効硬化

1. Was hardened by statute of limitations.; Was solidified due to expiration.

Past/Perfective
, 
Polite
, 
Chemistry

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時効硬化でした

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