ammonia nitrogen是什么意思

ammonia nitrogen 氨型氮；氨氮 氨态氮；氨态氨；膜式氧合器例句筛选1.LC_(50) that exposed with ammonia nitrogen time had lengthening downward trend of presenting.半致死浓度随氨氮暴露时间延长呈下降趋势。 2.But its return to original state product is mainly the ammonia nitrogen, but is not the ideal nitrogen.但其还原产物主要是氨氮，而不是理想的氮气。