氮氧化物 Save Sign in to save words dànyǎnghuàwù ㄉㄢˋ ㄧㄤˇ ㄏㄨㄚˋ ㄨˋ nitrogen oxide Character by character 氮(dàn)nitrogen 氧(yǎng)oxygen 化(huà)make into 物(wù)thing A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0