硝化

The results show that the penetrability of powder loads can be improved when suitably reducing bulk density and grain size of gun propellant, increasing nitrogen content of NC and choosing oblate spheroid explosive respectively under the constant test con

结果表明，在其它试验条件不变的条件下，适当降低发射药堆积密度、适当提高发射药中硝化棉含氮量、选用恒面燃烧的扁型药、降低发射药粒度均有利于提高射钉的穿透能力。

The results show that the bud bacilli can oxidate ammonia to nitrous, and when ammonia concentration in wastewater ranges from 25 mg/L to 70 mg/L, ammonia removal amount is direct proportion to ammonia concentration in wastewater and ratio of ammonia removal ranges from 58% to 69%.

结果表明，芽孢杆菌主要进行亚硝化脱氮，在氨氮进水浓度25～70 mg/L范围内，氨氮去除量与进水氨氮浓度成正比，氨氮的去除率稳定在58%～69%。

The results show that the bud bacilli can oxidate ammonia to nitrous, and when ammonia concentration in wastewater ranges from 25 mg/L to 70 mg/L, ammonia removal amount is direct proportion to ammonia conce...

结果表明，芽孢杆菌主要进行亚硝化脱氮，在氨氮进水浓度25～70mg/L范围内，氨氮去除量与进水氨氮浓度成正比，氨氮的去除率稳定在58%～69%。

With singular attention to detail, the new Eric Johnson Stratocaster RW features a two-piece alder body finished in thin-skin nitrocellulose lacquer, a quartersawn maple neck with bound round-laminated 12-radius rosewood fretboard, a three-ply parchment pickguard, pickups voiced by Johnson himself, staggered vintage-style tuners, a custom tremolo block, and four brand-new finish options, three of which (Lucerne Aqua Firemist, Tropical Turquoise and Medium Palomino Metallic) are exclusive to this model.

对细节独到的关注，新的签名琴的特点是琴体由两片赤杨木组成并由硝化纤维清漆粘和；琴颈为quartersawn枫木，与12英寸半径的桃花芯木指板粘和组成；外带3层羊皮纸的匹克护板；拾音器由埃里克约翰逊亲自参与设计制作；直排复古型卷线器；以及订制级颤音摇把；4款全新的颜色选择，其中3个（网页上有：深蓝色，浅蓝色和金棕色）都是这一款琴独有的。

In this paper,the synthetic method of 2,4,4′trichloro2′aminodiphenyl ether from paradichlorobenzene was described.

由对二氯苯通过硝化、缩合、还原等反应合成 2 ，4，4′三氯 2′氨基二苯醚，总收率 75 %。

Taking piggery wastewater with high ammonia nitrogen and organic concentrations as treatment object,the ANAMMOX-based nitrosation process was investigated under the condition of ambient temperature of 25 ℃ and constant pH.

以高氨氮、高有机物浓度的养猪场废水为处理对象，在室温(25℃)、不调节pH的条件下，研究了基于厌氧氨氧化的亚硝化过程。

Installed in surface aeration oxidation ditch with prepositive denitrification treatment, using the role of the mixture Gravity, it can achieve any reflux ratio requirements of process design by adjusting the cross-section area of water.

安装在设置有前置反硝化区的表曝型氧化沟内，利用混合液重力流的作用，通过调节过水断面面积，实现工艺设计的任意回流比要求。

Company's main products are plastic flexible packaging for various types of embossing printing inks, environmentally friendly water-based laminating adhesive, Widely used in inks and coatings industry for various models of the Prolamin, Ester Solubilization and environment-friendly liquid Nitrocellulose.

公司的主要产品有用于塑料软包装各类型的凹凸版印刷油墨，环保水性复合胶粘剂，广泛应用于油墨和涂料行业使用的各种型号的醇溶，酯溶，环保型硝化棉液。

Synthesis of target compounds namely: to vanillic acid as the starting material with methanol under reflux conditions for 4 - hydroxy -3 - p-methyl, then ether, and nitration, reduction, cyclization reaction 6 - methoxy -7 - benzyloxy-quinazoline -4 - one, and then by the chloride in place of aniline, benzyloxy-off, such as etherification reaction of the target compounds; target compounds with the second and third occurrence of substitution reactions of amines by the TM1, that is, 4 - amino-benzene -6 - methoxy -7 - [2 - hydroxy -3 -(N, N-diethyl amino) oxy c] quinazoline; with ether occurred Ornidazole reaction of TM2, namely, 4 - amino-benzene -6 - methoxy -7 - [2 - hydroxy -3 -(2 - methyl -5 - nitroimidazole) C oxy] quinazoline.

本论文以嘌呤类似物喹唑啉为母核，分别在其4位和7位引入结构多样的取代苯氨基和柔性侧链，设计了一系列4-取代苯胺基-6-甲氧基-7-(2-羟基取代丙氧基)喹唑啉类化合物。目标化合物的合成即：以香草酸为起始原料，与甲醇回流条件下得到4-羟基-3-甲氧基苯甲酸甲酯，然后经过醚化、硝化、还原、环合反应得到6-甲氧基-7-苄氧基喹唑啉-4-酮，然后再经氯化、取代苯胺、脱苄氧基、醚化等反应得到目标化合物；目标化合物与二乙胺发生胺取代反应得到了TM1，即4-苯氨基-6-甲氧基-7-[2-羟基-3-丙氧基]喹唑啉；通过与奥硝唑发生醚化反应得到TM2，即4-苯氨基-6-甲氧基-7-[2-羟基-3-(2-甲基-5-硝基咪唑)丙氧基]喹唑啉。

Our study was the first report comparing the microbial structure of two effective denitrifying communities which could efficiently degrade quinoline and indole.

首次报道并比较了可高效降解喹啉和吲哚的反硝化生物反应器的微生物群落结构。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。