查询词典 Ammonia

First use soap-free emulsion preparation for polystyrene spheres, and the kernel, Reuse are silicon acetic tetraethyl ortho-silicate in ammonia catalytic hydrolysis, formed under the condition of silica, charged by six water or their cerium, six of methylene amine solution HMT (4) into the negatively charged, uniform cerium oxide coated surfaces to PS microspheres, core-shell structure of PS - CeO2 and PS - SiO2 composite microspheres.

首先用无皂乳液制备了聚苯乙烯微球，并以此为内核；再利用正硅乙酸乙酯在氨水催化条件下水解，形成带负电性的二氧化硅，或者利用六水亚硝酸铈、六亚甲基四胺水溶液分解出带负电性的氧化铈，均匀的包覆到PS微球表面，形成核-壳结构的PS-CeO2和PS-SiO2复合微球。

In the present dissertation, a surfactant-templated mesoporous silica molecular sieve with high pore volume, high porosity and narrow bimodal mesopore size distribution was synthesized for the first time in a reaction system, which was used usually in the synthesis of mesoporous MCM-41 molecular sieves, by a judiciously controlled two-phase sol-gel processing under basic conditions.

在本论文中，我们通过对一个通常用于制备介孔MCM-41分子筛的反应体系中正硅酸乙酯水解与缩合反应相对速率的精确调控，首次在弱碱性体系中合成了一种具有高孔隙率、大孔体积和双介孔孔分布特征的新型二氧化硅分子筛材料，简记为BMS，并对BMS二氧化硅分子筛中双介孔结构形成的原因及各种可能对其结构和性质产生影响的合成因素如Ammonia／silica摩尔比、组分浓度的变化、表面活性剂烷基链长度的调节、辅助有机物均三甲苯的引入、催化剂的结构和性质、溶剂和助溶剂的极性和用量、老化和干燥条件的变化及合成后水热处理等，利用不同的测试手段如XRD，SEM，TEM，〓Si MAS NMR，TG-DTA，N〓吸附测试等进行了系统的表征研究。

The semi-aerobic landfill can eliminate the pollution of nitrogen in the landfill by means of its self-disposal function in a shorter period within the laboratory simulated conditions. This supplies an important idea and way for solution to the problems of high concentration of ammonia nitrogen being difficult to treat in leachate in the middle and final stages.

在室内模拟条件下，准好氧填埋完全能够在较短的时间内利用自身的处理功能，去除垃圾中氮污染，这为解决传统填埋场中后期垃圾渗滤液氨氮浓度高、处理难的问题提供重要启示和有效途径。

It showed that the light color of sea cucumber had significant influence on the rate of oxygen consumption and ammonia excretion rate.

这说明光谱对刺参的耗氧率和排氨率有显著性的影响，丰富了刺参的基础研究，对于刺参养殖生产有一定的指导意义。

The main production of Kam spandex plain cloth, polyester ammonia nap cloth, colored satin, suede, super-soft short plush,elastic cloth, shoe upper cloth, golden velvet, mercerizedvarious warp knitting fabrics.

主要生产各种锦氨纶平布、涤氨拉毛布、色丁布、麂皮、超柔短毛绒、弹力拉架布、鞋面布、金光绒、丝光绒等各种经编面料。

Diglycolic simple methyl ether is made up of dig lycolic and sulfate dimethyle, with ammonia water as catalyst. The stock can be found easily and the process is easy too. According to the temperature du ring the reaction, the formula of the stock, the time of the reaction etc, discussion was made in more detail.

以二甘醇、硫酸二甲酯为原料，以氨水为催化剂，合成二甘醇单甲醚，原料易得，工艺简单，针对反应过程中反应温度、原料配比、反应时间等影响因素，进行了较为详细的讨论。

A cleaner process of rice straw and wheat straw pulping by using aqueous ammonia mixed with small amount of caustic potash was studied.

中文题名稻、麦草NH4OH-KOH法制浆清洁工艺副题名外文题名 Cleaner process of NH4OH-KOH pulping of rice straw and wheat straw 论文作者黄国林导师张成芳学科专业化学工艺研究领域\研究方向绿色化学工艺学位级别博士学位授予单位华东理工大学学位授予日期2003 论文页码总数112页关键词造纸纸浆清洁工艺碱性絮凝处理制浆稻麦草馆藏号BSLW /2003 /TS74 /2 本文研究了以氨水添加少量苛性钾碱对禾草原料制浆的清洁工艺。

The invention is obtained by adopting a hydrothermal and pyrogenic decomposition method which adopts Zn (CH3COO) 2 . 2H2O, deionized water and ammonia as raw materials; zinc acetate nano ribbon-shaped material is first obtained by a hydrothermal method and is then treated with pyrolysis in air so as to obtain the ZnO nano ribbon-shaped material.

本发明采用水热和高温分解方法制备得到，即，以Zn(CH 3 COO) 2 2H 2 O、去离子水及氨水为原料，先利用水热法制得醋酸锌纳米带状物，然后在空气中高温加热分解而成。

Its preparing process includes dissolving the salts containing metal in group VIB or VII or their mixture in ammonia water until full dissolving, and adding citric acid to stabilize the solution.

其制备方法为：先用氨水溶解含ⅥB族金属或Ⅷ族金属的盐，或二者混合物，使之完全溶解后，加入柠檬酸以使溶液稳定。该溶液稳定性好，制备过程快速、简便、节能。

It products of "TengMin" High-level Sound absorption board has developed into fire-protection, zero - formaldehyde, natural wood-silk, natural-finish, fashion-metal ,colorful paint, bush soft packet and gather hydrogen ammonia three times environmental protection etc ,about 8 big series with more than100 varieties.

公司生产的&腾闽&牌高级吸音板，目前已发展为安全防火、零甲醛、天然木丝、天然木皮、时尚金属、幻彩油漆、布艺软包、三聚氢氨环保型等8大系列100多个品种。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。