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carbon-nitrogen-oxygen
earth.sc. 碳-氮-氧
oil.proc. 碳一氮一氧分析
 English thesaurus
Carbon-Nitrogen-Oxygen
abbr., astronaut. CNO
IT, abbr. CNO (Space)
carbon-nitrogen-oxygen
: 4 phrases in 4 subjects
Automobiles1
Earth sciences1
Space1
Technology1