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ニオブ酸 さんじゃなかったです
niobusanjanakattadesu

敬
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Noun
, 
Desu Copula

The polite, past negative form of ニオブ酸

1. Wasn't niobium acid.

Past/Perfective
, 
Negative
, 
Polite
, 
Casual Register
, 
Chemistry

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ニオブ酸じゃなかったです

ニオブ酸じゃなかったです【ニオブさんじゃなかったです】 Activity

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