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二 に酸化 さんかケイ素 けいそではありませんでした
nisankakeisodewārimasendeshita

敬
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Noun
, 
Desu Copula

The polite, past negative form of 二酸化ケイ素

1. Was not silicon dioxide.

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

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二酸化ケイ素ではありませんでした

二酸化ケイ素ではありませんでした【にさんかけいそでわありませんでした】 Activity

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