查询词典 Ammonia

A In the absence of oxygen, the organic matter is broken down anaerobically to form large amount of toxic and bad-smelling gases such as methane, ammonia, and hydrogen sulphide, the water quality is further deteriorated.

a 在缺少氧气的情况下，有机物质被缺氧呼吸分解为大量有毒而又恶臭的气体，如：甲烷，氨，和硫化氢，这些东西使水质更坏

SAT remove ammonia and nitrate nitrogen in the sequence of aerobic, anoxic and anaerobic conditions.

SAT可以通过好氧和厌氧状态的生物作用有效去除水中的氨氮和硝酸盐氮。

Apertured TiO2 microtubes have been fabricated by simple hydrolysis of titanium tetrachloride using ammonia in the presence of glacial acetic acid.

在冰乙酸存在条件下，以四氯化钛水解法制备了具有锐钛矿晶型结构的二氧化钛多孔微管，并用化学沉积法对其进行修饰，得到银修饰的二氧化钛多孔微管。

To the most suitable nitrogen source for the growth of black spot disease of Araliaceae was the complete protein peptone which was stronger than comparison, glutanic acid, asparagine,alanin, potassium nitrate, nitrate of soda, ammonium sulfate, ammonia water, ammonium chloride.

对刺五加黑斑病菌最适合生长的氮源为完全蛋白胨强于对照，强于谷氨酸，强于天门冬酰胺，强于丙氨酸，强于硝酸钾，强于硝酸钠，强于硫酸铵，强于氨水，强于氯化铵。

Bifluoro nitrobenzene was the raw material of synthesis of asymmetry chromotropic acid bisazo fluoroarsen reagent, By way of ammonia substitution, arsonation, reduction and coupled reactions, bisazo fluoroarsen was synthesized.

以2，4—二氟硝基苯为起始原料，经过氨取代、胂酸化、还原、偶联反应合成了偶氮氟胂Ⅰ，然后分别选择不同的取代苯胺与偶氮氟胂Ⅰ偶联，合成了一系列的不对称变色酸偶氮氟胂。

More and more attention is focusing on the safty of drinking water suply. In this paper, firstly, chloramine formation and the characteristics and kinetics of monochloramine autodecomposition were studied. Secondly, considering the high concentration of ammonia and the complication of organic matters in Shanghai Huangpu River, formation characteristics and rules of disinfection byproducts were reviewed during the breakpoint chlorination process, and on the basis of grading and clssification of organisms, the control effects of chloramination on DBPs formation were studied. Finally, the formation rules of 2-monochlorophenol, 2,4-dichlorophenol and 2,4,6-trichlorophenol from phenol chlorination were investigated, and related influencing factors and kinetics were analysed.

饮用水的安全供给受到越来越多的重视，本文首先进行了氯胺形态以及一氯胺自降解特性及其动力学研究；然后结合上海黄浦江水源氨氮浓度高、有机物成分复杂的特点，研究折点加氯过程中消毒副产物的生成特性和规律，以及在将有机物分级和分类的基础上，研究氯胺消毒对不同类别有机物生成消毒副产物的控制效果；最后考察了氯化苯酚生成2-一氯酚(2-MCP)、2，4-二氯酚(2，4-DCP)及2，4，6-三氯酚(2，4，6-TCP)的规律，并进行了影响因素和动力学分析。

The concentration of causing the disease will bedown with such factors as weak fish body, higher ammonia-N, and lower dissolvedoxygen.

本试验方法快速简便，检测对象为水体，非常适用于预测疾病的发展趋势。

E. methyl jasmonate +methyl salicylate, MeJA +cis-hexenal, MeJA +trans-hexenal, MeJA +benzothiazole, and then the induced activities of three defensive enzymes including peroxidase, polyphenol oxidase and phenylalanine ammonia lyase were measured.

以1年生合作杨扦插苗为试验材料，利用茉莉酸甲酯分别与水杨酸甲酯、顺式己烯醛(cis-hexenal)、反式己烯醛(trans-hexenal)和苯骈噻唑混合的4种挥发物熏蒸合作杨叶片，检测过氧化物酶、多酚氧化酶及苯丙氨酸解氨酶3种防御酶的活性变化。

It is also confirmed that the reaction of producing pyrrole by reaction of furan with ammonia belongs to bimolecular reaction in which the reactants were competitively absorbed on the surface of catalyst prior to the reaction.

研究还表明，氨和呋喃催化脱水合成吡咯的反应，属于吸附在催化剂表面上的双分子反应，二者在催化剂表面呈竞争吸附，因此两反应物之间应有一个最佳摩尔比。

The method is based on the cobalt catalyzing oxidation of bromocresol purple by hydrogen peroxide in the media of ammonia water using potassium chloride as an activator.

研究了在氨水溶液介质中，以氯化钾溶液为活化剂，痕量钴离子催化过氧化氢氧化溴甲酚紫褪色的指示反应，通过测量590 nm处溶液吸光度的改变，建立了催化动力学光度法测定痕量钴的新方法。

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。