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過 か塩素 えんそ酸 さんではありませんでした
kaensosandewārimasendeshita

敬
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Noun
, 
Desu Copula

The polite, past negative form of 過塩素酸

1. Was not perchloric acid.; Was not chloric acid.

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

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過塩素酸ではありませんでした

過塩素酸ではありませんでした【かえんそさんでわありませんでした】 Activity

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