二氧化氮

If humans can limit the production of nitrous oxide, more ozone may be spared.

如果人们能够减少一氧化二氮气体的排放，那么更多的臭氧将得以保全。

Livestock farming accounts for 9 percent of all global CO2 emissions from human activity, and 65 percent of the nitrous oxide .

所有的9人类活动全球二氧化碳排放量百分之占畜牧业生产，和65的一氧化二氮的百分之。

Automobiles, heat from homes and businesses, and factories are responsible for about 80% of today's carbon dioxide emissions, 25% of methane, and 20% of the nitrous oxide emissions.

汽车，家庭和企业的热量，和工厂负责80今天的二氧化碳排放量，25％％的甲烷和20％，一氧化二氮的排放量。

By means of experimental research on every criterion and its test process in the existing standard of industrial APP,some problems and shortcomings in the standard are found,for example,low criterions in phosphorus pentoxide content,average polymerization degree and granularity,imperfect test means in nitrogen content,average polymerization degree,and so on.

通过对工业聚磷酸铵行业标准中各项指标和检验方法的实验研究，发现标准中存在一些问题和不足，如五氧化二磷含量、平均聚合度、粒度等的指标要求低及氮含量和平均聚合度的检验方法不理想等。

High concentration of ammonia-nitrogen wastewater was drained off in the production of vanadium sesquioxide (V2O3) in Panzhihua Steel Group Panhong Vanadium Production Ltd.

攀枝花钢铁集团攀宏钒制品有限公司三氧化二钒生产过程中产生浓度较高的氨氮废水，如直接排放将会对金沙江水体造成恶劣影响。

In order to investigate the antioxidant activity, thirteen stilbene derivatives was examined by DPPH method. The radical scavenging ability is greatly increased by 2, 5-dihydroxy groups in the skeleton. There is a linear relationship between the maximum UV absorption wavelength and the radical scavenging ability of the compounds.

为了考察羟基衍生物的抗氧化活性，应用DPPH法对13个茋类化合物进行自由基清除能力评价。2，5-二羟基取代茋衍生物显示出较强的自由基清除能力，8个非氮杂茋衍生物的最大紫外吸收波长与自由基清除能力之间呈线性相关性。

Foams are slightly more dense than airs and they are generally made with a similar liquid, but foamed up in a cream whipping device charged with nitrous oxide.

泡沫比空气的密度要大，而且它们通常是由一种相似的液体组成，但是在充满一氧化二氮的冰淇淋装置里会起泡沫。

Meanwhile, Azoxybenzene was also detected by GC-Mass from the extracts of culture fluids with dichloromethane, which conformed the probability of the existence of two metabolites: nitrosobenzene and N-phenylhydroxylamine. Because Azoxybenzene might be yield from the reaction of these two compounds under the catalytic influence of alkali.

另外通过GC-MS测定硝基苯降解液的二氯甲烷提取物，测到氧化偶氮苯的存在，它能在碱的催化作用下由亚硝基苯和N-苯基羟胺反应生成，所以它的存在从反面证实了降解中间产物亚硝基苯和N-苯基羟胺的存在。

Methods In the medium of H2SO4, the catalytic action of Feon the oxidation of dibromomethyl carboxyazo by KIO4 was effectively inhibited by EDTA with α,α'-dipyridyl as an activator of the reaction.

方法在硫酸介质中，以α，α'-双吡啶为活化剂，Fe催化碘酸钾氧化二溴对甲基偶氮羧的反应可被微量EDTA有效阻抑，被过量EDTA有效终止。

No tetracthyl thiuram (TETD or D2) molecule formed by oxidation on the surface. At the potential from -0.25 V on, the chemical adsorption of jamesonite occurred. In the presence of diethyldithiocarbamate, the interaction between jamesonite and diethyldithiocarbamate became obvious from 0.35 V on.

采用循环伏安电位扫描研究方法，研究了乙硫氮在脆硫锑铅矿表面的电化学作用机理，在其表面没有氧化形成四乙基二硫化秋兰姆（TETD或D2）分子；电极电位从－0.25V左右开始就在脆硫锑铅矿产生了化学吸附。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷