硝化的

The results indicated that the leaching of acid rain led to increasing of latent acid of soil in short time though amortizing of soil to acid precipitation.

许多研究认为，人为酸化的因素主要有大气污染引起的酸雨输入 [2、3] 和施入氮肥引起的硝化作用 [4、5] 两方面。

Effects of reaction temperature,reaction time and mole ratio of nitric acid to aromatic hydrocarbons on performance of the catalyst were investigated.

实验结果表明，磷钨酸对低沸点芳烃液相硝化反应具有显著的催化活性，在优化的条件下，苯、甲苯和氯苯的转化率分别为98.0%，99.5%，100.0%。

However, a constant flow system can enhance ammonia levels in the water, allowing for better nitration and higher growth rates.

不过，源源不断系统能提高在水中的氨的水平，以更好地硝化和较高的增长率允许。

It increased the content of chlorophyll, soluble protein, ammoniac nitrogen and soluble sugar in functional leaves, but declined the content of starch and nitrate nitrogen in functional leaves during the whole growth period of cotton.

研究表明，增加硝化抑制剂有利于棉花在生长发育的各个时期，功能叶片叶绿素、可溶蛋白、氨基态氮、可溶糖含量的积累，但抑制淀粉和硝态氮含量的积累。

Six kind of bacteria were isolated from the mixture, and it was approved is that when the temperature was 30~35 oC ,pH was 8.0,DO＜1.2mg/L,the condition was adapted to Nitrosomas and the rate of remove about ammoniate was more than 80%.

得出在温度为30-35oC， pH值为8.0，DO＜1.2mg/L的条件下，最适合混培物的生长，氨氮的去除率可达80%以上，从而有效地降低抑制作用，使得后续反硝化能够顺利进行。

Based on the previous studies and combined with the national important scientific special item—the projection of water environment improvement and comprehensive demonstration in Suzhou city. The influence to water quality melioration under different conditions of packing types, stuffing rate, air supply and hydraulic loading using water of Miaojia river as experiment water sample; the water contaminate removal ability by the absorption and interception of charcoal filling and the research of the denitrification rate of charcoal filling were discussed in the paper. Furthermore, the activity of the biofilm on savageness and artificialness filling surface in the projection demonstration riverway were also analyses.

本人在总结前人研究的基础上，结合国家重大科技专项——苏州城市水环境质量改善与综合示范项目，研究了不同填料基质、填充率、曝气量、水力负荷条件下生物填料对苏州城市重污染河道水质的改善效果；木炭填料吸附、截留作用对水体污染物去除能力及其反硝化脱氮能力；分析了项目示范区河道内天然填料及人工填料挂膜成熟的生物膜活性。

The experimental results indicate that the nitrite oxidizers are more sensi-tive to free ammonia than ammonia oxidizers in the wastewater.

结果表明，在高游离氨条件下，硝酸菌比亚硝化菌对游离氨更为敏感，反应体系中亚硝酸盐的平均积累速率远大于硝酸盐的平均积累速率。

To investigate the responding behavior of denitrifying bacteria to different carbon source (i.e. methanol, ethanol, sodium acetate, sodium propionate, glucose, domestic wastewater and endogenous carbon source), several batch experiments using the sludge from the Carrousel oxidation ditch were carried out at 15.4℃±0.8℃.

为了研究低温环境下反硝化细菌对各种碳源的直接反应，利用Carrousel氧化沟系统的活性污泥，以甲醇、乙醇、乙酸钠、丙酸钠、葡萄糖、生活污水及内源物质为碳源，在15.4℃±0.8℃低温状态下开展序批式缺氧反硝化试验。

The ten target compounds from alkyl substituent to aryl substituent that have not yet been reported,which was obtained by dehydration, Subsequently treated with sodium nitrite resulting nitroso compounds and then reduced.

本论文以2-羟基-3-萘酸和邻巯基苯胺为原料，通过分子脱水、亚硝化、还原等反应合成了10个不同取代基团的4-苯并噻唑基-[1，2-d]萘并噁唑衍生物，并优化了合成的工艺条件。

The experimental results show that the composite emulsion of nitrocellulose -alkyd resin acrylate, which is prepared by modifying the nitrocellulose with non -drying or alkyd resin, methyl methacrylate and butyl acrylate monomer under the optimized experimental conditions have good stability and excellent performance.

实验结果表明，以不干性油醇酸树脂、甲基丙烯酸甲酯和丙烯酸丁酯单体为主要原料，在优化的实验条件下对硝基纤维素进行改性，可制得稳定性好的硝化纤维素-醇酸树脂-丙烯酸酯复合乳液。

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。