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nitrogen
A gaseous element which constitutes one-fourth in volume of the atmosphere, is the basis of nitric acid, and is an essential constituent of proteids, alkaloids, and albuminoids.
- 词性： noun
- 行业/领域： 语言
- 类别 Encyclopedias
- Organization: Project Gutenberg
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创建者
- JohannesDD
-
(V.I.P) 14638 分数 - 100% positive feedback
(Sydney, Australia)
