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nitrogen oxides
gen. 窒素酸化物 Engineering and Science Technical Dictionary (James Friend)
n nitrogen oxide | n
gen. NOx; 窒素酸化物; 酸化窒素 (esp. nitric oxide, but also nitrous oxide, nitrogen dioxide, dinitrogen pentoxide, etc., さんかちっそ)
 English thesaurus
nitrogen oxide
abbr. no
Nitrogen Oxides
abbr. NOx