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遊離 ゆうり酸素 さんそでした
yūrisansodeshita

敬
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Noun
, 
Desu Copula

The polite past form of 遊離酸素

1. Was free radical.; Was detached oxygen.

Past/Perfective
, 
Polite
, 
Chemistry

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遊離酸素でした

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