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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
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Hierarchy
Groups
Preferred term
氧化氮
Broader concept
化学工业和制药
无机化学品
污染
Related concepts
光化学氧化剂
氮
温室气体排放
空气污染物
In other languages
Arabic
أكاسيد النيتروجين
English
NITROGEN OXIDES
French
OXYDES D'AZOTE
Russian
Оксиды азота
Spanish
OXIDOS DE NITROGENO
URI
http://metadata.un.org/thesaurus/1004421
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