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联合国叙词表
Vocabularies
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Sidebar listing: list and traverse vocabulary contents by a criterion
Alphabetical
Hierarchy
Groups
Preferred term
氮
Broader concept
天文学, 化学和物理学
无机化学品
气体
矿物资源
Related concepts
亚硝基胺
固氮
氧化氮
硝化纤维素
硝酸
硝酸盐
脱硝作用
In other languages
Arabic
النيتروجين
English
NITROGEN
French
AZOTE
Russian
Азот
Spanish
NITROGENO
URI
http://metadata.un.org/thesaurus/1004419
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