查询词典 ammonia

Fluoroalkyl acetic acids were converted to their corresponding carbonyl chlorides, and the latter reacted with o-aminpbenzyl aldehyde and ammonia gas to give 3-(1-imino-fluoroalkyl)-1H-quinolin-2-ones in moderate yields.

将2-氟烷基乙酸转化成相应酰氯，后者与邻氨基苯甲醛在通氨气条件下以较高产率转化为相应的3-（1-亚胺基-氟烷基）-1H-喹啉-2-酮。

A series of perovskite oxides are synthesized by means of blend deposition using the nitrate of A and B as the raw materials, and ammonia or sodium carbonateas sedimentation .A includes alkaline-earth metals such as Mg, Ca, Sr, Ba and rare-earth metalsLa; while B includes transition metal Cr, Mn, Fe, Co and Ni.

本文以A，B的硝酸盐为原料，以氨水或碳酸钠为沉淀剂，利用混合沉淀的方法合成了系列钙钛矿型氧化物。A选碱土金属元素Mg、Ca、Sr、Ba等及稀土金属元素La；B选过渡金属元素Cr、Mn、Fe、Co、Ni等。

There are several other little-used counterirritants, such as allyl isothiocyanate, histamine, methyl nicotinate, stronger ammonia water, and turpentine oil.

还有其他一些很少使用的抗刺激剂，如烯丙基异硫氰酸酯，组胺，甲基烟酸，更强的氨水和松节油。

The author introduces the design and manufacture of the trailer used for the replacement of ammonia condenser.

针对合成氨冷凝器( 1 2 7—C)的严重内漏等问题，公司要求对其更换，我们决定设计制作一台平板拖车，既克服了更换场地的狭窄，又收到了很好的效果。

In accordance with the problems such as lower cooling effect and corrosion of the water treatment of the cooling water system of ammonia condenser ,the water treatment program of the water quality was optimized,and the water treatment effect before and after the program were summarized.

针对氨冷凝器冷却水系统水处理存在的冷却效果差和腐蚀问题，提出水质处理的优化方案，总结了优化前后的水处理效果，结果表明：使用新方案后，氨冷凝器的冷却效果得到明显的改善，冷凝排气压力降低，氨排压4机运行时为1。

It was found that the leakage cause of the ammonia condenser tubes was the electrochemical corrosion due to the cooling water based on the analysis on the cooling water,tubes and the scales.

通过对冷却水、传热管以及垢层的分析检验，发现氨冷凝器传热管泄漏是由冷却水对金属的电化学腐蚀引起的。

Condenser vertical upright ammonia screwed pipe heat transfer

冷凝器；立式；氨；螺纹管；传热

The result shows that the cooling capacity increases with increasing generator heat transfer. The coefficient of performance of the system increases when the quantity of the generator heat transfer is increased from 6 kW to 7 kW, however it decreases in the range of 7 kW-9 kW. When the fan frequency increases, the temperature of liquid ammonia leaving condenser decreases, while the cooling capacity and the COP of the system increases. When the flow rate and inlet temperature of water/glycol increases, the evaporator takes more heat away and the cooling capacity and COP of the system increases.

其结果可发现当发生器加热量增加，系统温度增加系统冷冻能力增加，但其COP於6 kW-7 kW 系统COP会有先增加，於7 kW-9 kW，系统COP会有下掉的趋势；在冷凝器方面，当风扇频率增加，冷凝器温度降低时，冷凝器出口冷媒随之降低，系统冷冻能力会有所提高，COP亦增加；在蒸发器方面，蒸发器卤水出口温度及卤水流量增加，可以使蒸发器带走更多的热量其系统冷冻能力及COP也就会相对增加。

However, previous studies have demonstrated that other additives such as ammonia gas and liquor are also capable of reducing SO2 and NO, emissions

而以往的研究表明，其它的添加剂，诸如氨气或氨水也能够减少二氧化硫或氮氧化物的排放。

Here ammonia is removed from the liquor and condensed to form a concentrate which is stored and dispatched off site for sale.

在氨厂，氨被从洗液中移除并浓缩、储存、分送出厂销售。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。