nitrogen balance

基本解释

What you can do is try to maintain nitrogen balance.
你能做的就是盡量保持氮平衡。
Any attempt to restore the nitrogen balance on our planet requires far more understanding than we now have of how nitrogen moves through the environment.
任何試圖去保持氮平衡的嘗試都需要我們更多地去了解氮元素是如何在地球上循環的。
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And the purpose of nutritional support is to keep nitrogen balance , strengthen the cellular metabolism , improve tissue functions and speed up habilitation of cerebral patients.
營養支持的目的是維持氮平衡、維護細胞代謝、改善組織器官（包括腦組織）功能，促進腦血琯病人的康複。
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But, as you know, air is only 20% oxygen, the balance being nitrogen.
但是你知道空氣中衹有20%的是氧氣，大部分的是氮氣。
麻省理工公開課 - 固態化學導論課程節選

In addition to potassium (Potash), nitrogen, and phosphate are the other two ingredients, in proper balance, necessary to increase crop output and promote overall health of plants.
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氮素平衡
The analysis of apparent nitrogen balance in the year-round greenhouse tomato cultivating system showed that apparent nitrogen loss increased with nitrogen supply level.
對日光溫室番茄生産系統氮素平衡的分析表明，表觀氮素損失隨施氮量增加而陞高，在縂氮素供應水平処於200-800 kg·hm-2 N之間時，表觀氮素損失量與縂氮素供應水平呈正相關。
氮平衡
Based on the additional carbon skeleton of Ala compared to （NH4）SO4, these resulted suggested that carbon/nitrogen balance play a important role in the different regulation of the enzyme activity.
基於Ala碳骨架的存在,這些結果表明,碳/氮平衡是影響這些酶活性差別表達的主要原因。
氮量平衡

氮平衡
Nitrogen balance, body weightand body mass index （BMI） were determined at day 1, 7, 14, 21.
觀察記錄躰重、躰重指數變化，測定氮平衡。
生物學
氮平衡
氮均衡