氮

To promote development of low alloy steel bearing vanadium and mitrogen,the process,conditions and products of preparing nitrided ferrovanadium and vanadium nitride are introduced on the basis of main documents.

为推动含钒氮低合金钢的发展，在查阅主要文献的基础上，重点介绍了氮化钒铁及氮化钒制备的工艺方法、条件及产品情况。

The results of tests for production of 400?MPa-grade vanadium bearing concrete steel(Ⅲ-grade 20?MnSiV concrete steel)using VN alloying and ferrovanadium alloying were introduced.

介绍了攀钢采用氮化钒合金化与钒铁合金化生产 40 0MPa级含钒钢筋(2 0MnSiVⅢ级钢筋)的对比试验结果，研究了钒、氮微合金化对钢筋的性能和组织的影响，探讨了氮化钒的强化机理，比较了使用两种合金的生产成本。

The work done previously is experiential. To this day, the researches on silicon nitride thin film prepared by PECVD stay initial stages, so it is necessary to further develop PECVD. On the other hand, it is essential to prepare high quality silicon nitride thin film for gate insulator layer of TFT in order to get excellent TFT.

前人做的工作大多也都是经验性的，至今人们对PECVD 氮化硅薄膜的研究还很不成熟，尚处于研究探索的阶段，从而在理论上有必要对PECVD 法氮化硅薄膜做进一步的研究；与此同时，制备高质量的栅绝缘层用氮化硅薄膜也是制备高性能薄膜晶体管这一课题的需要。

It was revealed that content of water among nitriding agent, space velocity, final nitriding temperature, temperature rate, the ratio of N2 and H2 all have impacts on the formulation of high surface area γ-Mo2N and the significance reduces in turn.

研究发现氮化剂中水含量、空速、氮化终温、升温速率、氢氮体积比对高比表面积γ-Mo2N/SiO2的形成均有影响，且影响显著性依次降低。

The basis function of the coinjection of Nitrogen and steam is increasing the displacement volume and supply the displacement energy on the basis of Nitrogen, the result of the numerical simulation showed that, after the coinjection of Nitrogen and steam (the optional aqueous Nitrogen ratio was 1: 20～1: 50), the theamal readius increased from 30m to 55m more or less, the recovery ratio increased by 5～10％. The production effect of the high cycles steam stimulation will be improved and the pattern infill will be avoided and the economic results will be improved. 4. The poor result of steamflood is another problem. On the basis of the analysis of the foamer mechanism in the propayation, movement and stabilization, this paper showed that the main meachanism of the increasing recovery of the Nitrogen foam and steamflood was the increasing displacement factor and oil displacement efficiency.

三针对蒸汽吞吐加热半径有限（一般30m左右）而蒸汽吞吐轮次已高达5轮以上的具体情况，将氮气与蒸汽混合（套管环空中注氮气，油管中注蒸汽）进行吞吐可增加加热半径1～2倍以上；在对原油流变性研究基础上，对氮气蒸汽原油体系状态进行了分析，指出了氮气在油藏中基本上是以气相方式存在；热氮混合吞吐的基本作用为扩大波及体积和提供驱油能量；在此基础上所进行的热氮混注数值模拟研究表明：蒸汽中加入氮气后（最佳汽氮比为1：20～1：50），加热半径从30m增至55m左右，采收率可提高5～10％以上，大大改善了高轮次蒸汽吞吐的生产效果，可避免大规模井网加密，提高了经济效益。

Four white-rot fungi, Pleurotus eryngii, Polyporus versicolor, Pleurotus ostreatus and Fomes lignosus, are tested for their abilities to produce lignin peroxidase, manganese peroxidase and laccase in N-limited and N-rich media with shake culture. The four white-rot fungi only produce manganese peroxidase and laccase. Pleurotus eryngii and Pleurotus ostreatus are selected, due to their high enzyme activities, for the degradation and decolorization of alkali lignin.

首先观察了四种白腐菌Pleurotus eryngii，Polyporusversicolor，Pleurotus ostreatus和Fomes lignosus在限氮和富氮培养基中振荡培养产木素过氧化物酶、锰过氧化物酶和漆酶的能力，由于Pleurotus ostreatus和Pleurotus eryngii产酶能力较强，用于碱木素的降解脱色效果较好，二者在限氮条件下11天对碱木素降解脱色率为65%和72%。

Better film quality with oxygen free content and higher electron mobility can be achieved with InN film with AlN buffer layer .

氮化铝缓冲层的加入，可大幅提升氮化铟薄膜的电子移动率，并能在400℃制作出晶相单纯之氮化铟薄膜。

Methods The DNA injury was determined with single cell gel electrophoresis, the contents of NO and NOS were measured by NO and NOS kits respectively and apoptosis of lymphocytes was determined by flow cytometry and gelose electrophoresis.

建立硫芥中毒淋巴细胞模型，分别用单细胞凝胶电泳法检测淋巴细胞DNA损伤；用镀铜镉还原法和一氧化氮合成酶试剂盒检测中毒后淋巴细胞培养上清液一氧化氮和一氧化氮合酶的变化；用流式细胞仪和琼脂糖凝胶电泳法检测细胞凋亡。

The soil had great population of bacteria, but the fungi quantity is excessive which may cause the multiplication of germina. As base-fertilizer, the slowed-release fatty had positive influence on soil fast-effect nutrient, but the organism quality is small, the soil enzyme activity with microorganism activity both low. Soil EC, total nitrogen, available nitrogen, available phosphorus and organic matters were significantly negative related to the soil pH. Soil total nitrogen was positive significantly related to soil available nutrient.

土壤中pH值与土壤EC值、土壤全氮、速效氮、速效磷、有机质含量呈显著负相关，土壤全氮含量与土壤速效养分含量有极显著正相关关系，而且土壤有机质含量与土壤速效养分之间也有相互促进的作用，所以土壤养分的平衡效果非常重要，有机肥处理后土壤养分全面，肥力较高。

Although underlying mechanisms ⑴ hae not been elucidated, eidence points to the participation of the nitric oxide and cyclic guanosine 3',5'-monophosphate system.

虽然根本的机制还没有阐明，但是证据显示一氧化氮和环鸟苷酸系统参与其中。这里，我们检测到在MC3T3-E1成骨细胞的分化中基质金属蛋白酶13的mRNA，蛋白和活性的升高，诱生一氧化氮合酶和一氧化氮产物的升高。

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