常見例句雙語例句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(huán)的。xbqawl.blog.163.comAnd 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(yǎng)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。www.translation-dictionary.net原聲例句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(tài)化學導論課程節(jié)選權威例句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.FORBES: How Arizona Is Helping America Reduce Dependence On Foreign Natural Resources 返回 nitrogen balance