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ammonium-nitrogen
gen. 铵-氮
ecol. 铵态氮
ammonium nitrogen
agric. 铵态氮
desert. 氨态氮; 钱态氮
el. 氨氮[氨中的氮]
ammonium-nitrogen
: 2 phrases in 2 subjects
Animal husbandry1
Chemistry1