氮化作用

The masking effect of the sodium azide solution on the interference of chloride and nitride was verified.

试验验证了叠氮化钠溶液对氯化物、氮化物干扰的掩蔽作用。

Both CaCN2 and urea inhibited the chlamydospore germination, mycelial growth and sporulation of the pathogen, but CaCN2 by using at the rates of 0.5 and 1.0%, had two inhibition zones for chlamydospore germination with time while urea had only one. Calcium cyanamide was also more effective on reducing mycelial growth and sporulation of the pathogen than urea did. Therefore, the suppression of pea wilt might be due to fungicidal effect of the intermediate products including hydrogen cyanamide and urea from calcium cyanamide.

由氰氮化钙（0.5及1.0%处理者）之抑制曲线在不同的时间出现两个抑制区，而尿素则仅有一个，及氰氮化钙对萎凋病菌菌丝生长及产胞的影响远较尿素为甚，显示氰氮化钙之所以能有效抑制萎凋病的主要因子，或许是来自其中间产物，包括尿素及氟酸的杀菌作用。

Students should grasp the classification of the nitration reactions and its industrial application, the main nitration reagents and the nitration method, the classification of the sulfonation reactions, the function of sulfo group and its in the industrial application, sulfonating agents and its industrial application, the separation method for the sulfonated compounds, the widespread applicationof diazonium and the coupled reactions and its in the industry specially employed in the dyes and the pigments synthesis

掌握硝化反应的分类及其在工业上的应用。掌握主要的硝化试剂和硝化方法。掌握磺化反应得分类、磺酸基的作用及其在工业上的应用。掌握磺化剂其在工业上的应用。了解磺化物得分离方法。掌握重氮化及偶合反应及其在工业上特别是在染料和颜料合成中的广泛应用。

The major bacteria of the activate sludge were identified to be Vorticalla convalleria and Aspidiacs spp., both were considered as responding to denitrification of high nitrate-N of lead azide wastewater.

中文摘要为了探讨含有高浓度硝基氮之叠氮化铅制程废水生物脱氮效能，本研究利用统一食品公司所提供的厌氧污泥进行脱氮菌的培养，经过了15天的培养其培养出大部份都是钟口菌属Vorticella convalleria ，和一小部份则为纤毛虫属aspidisca sp。，来进行含有高浓度硝基氮的氮化铅制程废水生物处理过程中的脱氮作用之研究。

It also classifies them in accordance with the compound method of triazene reagents as follows: reagents diazotizated with sodium nitrite and muriatic acid, reagents diazotizated with nitrosyl positive ion, reagents diazotizated with n-butyrate nitrite.These reagents with high sensitivity and good choice have been widely applied to the determination of microa mounts of cadmium and...

按三氮烯类试剂合成的方法进行分类，分别为在亚硝酸钠和盐酸作用下重氮化的试剂，在亚硝酰正离子作用下重氮化的试剂，在亚硝酸正丁脂作用下重氮化的试剂，此类试剂灵敏度高，选择性好，广泛应用于被镉、汞等过渡金属离子污染的环境样品的分析中。

According to Griess reaction, diazonium-salts formed from aromatic amines such as sulfonamides etc., react with NaNO_2 in acid medium and may be coupled with α-naphthylamine or diphenylamine to produce red colored compounds.

一按Griess反应芳香族胺类的重氮化鹽，如对氨基苯磺醯胺类药物等，在酸性溶液中皆能与α-萘胺或二苯胺分别偶合成偶氮色素而显紅色，过多之亞硝酸可与氮色素再作用使紅色消失而呈棕黄色。

By the B3LYP calculation of DFT, the difference in changes of energy and charge of ion probe C〓 and C〓 interacting with hBN and graphite respectively and the difference in frontier orbital energy level reveal difference in electroaffinity of hBN and graphite. It could be indicated that hBN only shows weak electropositivity, and will not be able to accept electrons from metal.

根据密度泛函B3LYP方法的计算结果，从六方氮化硼与石墨的前线轨道能级和两者对离子探针的作用能及C〓和C〓的电荷变化不同所表现出的在电亲和性上的差异，揭示了金属难以插入六方氮化硼层间的原因是六方氮化硼仅显弱的电正性，不能接受金属转移来的电子。

But foliar N of the remaining mass still decreased with decreasing mass, mainly due to mineralization.

但氮剩余量仍随重量的减少而下降，可能由於氮只发生矿质化作用。

According to the microalloying and strengthening and toughening principles of steel,a theoretical calculation method and optimum alloying design to determine titanium content in carbonizing steel were proposed.

根据钢铁材料的微合金化原理和强韧化原理，对广泛使用的含钛渗碳钢的钛含量进行了理论计算分析和优化设计，结果表明，适当降低钛含量，不影响其在渗碳过程中阻止奥氏体晶粒长大的作用，但可有效地减少或消除含钛渗碳钢中的液析氮化钛，从而提高钢材的力学性能。

In the Loess Plateau area, planting plantation had much help for the improvement of the nutritional element content, such as soil organic matter, total nitrogen, total phosphorus, available nitrogen and quick-acting potassium, and different plantations had different enhancement degrees.

结果表明：在黄土高原地区，种植人工林后能增强土壤腐殖化作用，促进土壤有机质的形成发育，对土壤的有机质、全氮、全磷、及碱解氮、速效钾等营养元素含量提高有很大帮助。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。