氮

The atmospheric phase is predominant in the global nitrogen cycle, in which nitrogen fixation and denitrification by miocroorganisms are of particular importance.

在全球氮循环中，气相是占优势的，其中，氮的固定和微生物的脱氮作用特别重要。

The atmospheric phaseis predominant in the global nitrogen cycle, in which nitrogen fixation and denitrification by miocroorganisms are of particular importance.

在全球氮循环中，气相是占优势的，其中，氮的固定和微生物的脱氮作用特别重要。

It can promote the synthesis and release of NO and NOS and the expression of iNOS.

同时可促进一氧化氮、一氧化氮合酶的合成和释放（P.05；P.01）以及诱导型一氧化氮合酶mRNA的表达。

With trimethyl,4-dodecylbenezyl ammonium chloride and 18-crown-6 as pase-transfer catalysts, the azidation of polyepichlorohydrin in poly and H2O were studied. The reaction discipline and mechanism were discussed. The results show that the system with trimethyl, 4-dodecylbenezyl ammonium chloride as phase transfer catalyst and PEG as medium is a safe and effective approach to glycidyl azide polymer preparation, and azidational ratio of PECH can reach 97% above within 15 h.

研究了氯化十二烷基苄基三甲基铵和18-冠－6为相转移催化剂时端羟基聚环氧氯丙烷在聚环氧乙烷和水为介质中的叠氮化反应，探讨了反应规律和反应机理，结果表明：以PECH为介质，十二烷基苄基三甲基氯化铵(TMDA-1)为相转移催化剂的反应体系，可在15h内使PECH叠氮化转化率达到97%以上，无主链断裂等副反应，是一条较为安全快速的制备叠氮粘合剂的方法。

Using the method of tosylation, tosylate terminated epichlorohydrin polymer as intermediate was synthesized by PECH and 4-toluenesulfonylzchloride in pyridine,azido terminated glycidyl azide polymer was obtained by the reaction of intermediate and sodium azide.

采用磺酸酯法，首先PECH与对甲苯磺酰氯在吡啶介质中反应形成端磺酸酯基氯化聚醚中间体，然后中间体经叠氮化作用形成端基为叠氮基的叠氮缩水甘油醚聚合物。

InNSb alloy films were prepared on GaAs (001) substrates by N2 radio frequency plasma-assisted molecular beam epitaxy, the N composition and micro-structures of the samples were characterized by atom force microscopy, scanning electron microscopy, X-ray diffraction and Raman spectroscopy.

本文利用射频氮等离子辅助分子束外延（RF-MBE技术在GaAs（001）衬底上生长稀氮InNSb半导体薄膜，并通过原子力显微镜、电子扫描显微镜、X射线衍射仪、拉曼散射光谱等测量手段对样品的微结构和氮组分等进行了表征。

Genetic diversity of carbon-nitrogen cycle was relative to soil organic matters,total nitrogen,carbon-nitrogen ratio,available phosphor and water content with different degrees.

碳氮循环基因多样性与土壤有机质、全氮、碳氮比、速效磷和土壤含水量等生态因子有不同程度的相关。

In this paper, as a case of Karamay, we have studied on space-time changement of soil quality in oasis of arid area. We measured quality for different land use types and years in same type by combinativing field sampling for Karamay in Xinjiang and analysis in laboratory, which is directed by former theory of soil quality. Then we did integrated evaluation of soil quality for different land use types, and had drew some conclusions as followed: In four land use types, the soil bulk density of layers(0～15cm) for farmland and tree land is bigger than the other land use types.The organic matter of every layer in manpower Tamarix Bulrush land is bigger; organic matter of Tamarix Bulrush land release efficiency nitrogen which result ration of C/N is higher; total nitrogen of all layers in farmland variety great as being effected by mass use of nitrogen in agriculture; deadwood and defoliation of tree、shrub and bulrush pooled in 5cm layer to result that quick nitrogen is the biggest among all layers. The total salt of nature shrub tree land for every layer being bigger than farmland explain that nature shrub thee land strongly stand salt and farmland for basification in this area; that the nutrient of face layer is bigger than the ground layer may be explained by that vegetation gather nutrient to be stored in deadwood and defoliation.

本文对以克拉玛依为例，对干旱区绿洲土壤质量的时间空间变化进行研究，在有关土壤质量的研究理论指导下，通过田间调查取样和室内分析相结合的方法，对新疆克拉玛依市农业开发区的不同土地利用方式及同一土地利用方式下不同利用年限土样土壤理化性质进行测定，从而对新垦绿洲不同土地利用类型土壤质量进行综合评价，结果如下：四种土地利用方式中，农地、乔木林地表层(0-15cm)土壤容重较大；各土层人工柽柳芦苇地的土壤有机质含量均较大；柽柳芦苇地的有机质在矿化过程中所释放出有效氮，导致柽柳芦苇地的C/N比例较高；受到农业耕作使用大量氮肥的影响，农地各土层全氮含量变异较明显；乔木、灌木及芦苇的枯枝落叶主要集中在5cm范围之内，导致几种土地利用方式类型下该层土壤速效氮最大；天然灌木林地的土壤总盐在各层均较大，其次是农地，说明天然灌木林地的高耐盐能力，以及该区农业生产用地的土壤盐碱化程度较重。

Test result makes clear electrode - biomembrane reactor is OK the approach that saltpetre can oppose nitrify through be being raised oneself purify of nitrogen of nitric acid salt , but the purify efficiency of nitrogen of nitric acid salt and total nitrogen .

试验结果表明电极-生物膜反应器可以硝可以通过自养反硝化的途径将硝酸盐氮去除，但硝酸盐氮和总氮的去除效率。

This article by the Chongqing Guizhou Province area tradition sour meat technique of production souse sour meat, withdraws the sour salt meat sample from the fermentative process to research the nutrition and the security conducts systematically, the thick protein, the myofibril protein, the sarcoplasm protein, the multi-peptide nitrogen, the nonprotein nitrogen, the dissociation amino acid, the crude fat, the free fatty acids, the fatty acid composition, the cholesterol, the soluble sugar, the mineral to b...

中文摘要：本文以渝黔地区传统酸肉生产工艺腌制酸肉，对酸肉发酵过程中的营养及安全性进行了系统研究，检测了粗蛋白、肌原纤维蛋白、肌浆蛋白、多肽氮、非蛋白氮、游离氨基酸、粗脂肪、游离脂肪酸、脂肪酸组成、胆固醇、可溶性糖、矿物质元素，乳酸菌数，总酸在发酵过程中的变化，并对成品挥发性盐基态氮、酸价、过氧化值、碘价、皂化价亚硝酸盐进行质量检测。

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