查询词典 condensation

American development gives fan of condensation of efficient air conditioningIn ministry of American the sources of energy aid financially below, american researcher already developed an efficient condensation fan.

美国研制出高效空调冷凝风机在美国能源部的资助下，美国研究人员已研制出高效冷凝风机。

In this thesis, the author uses analytics, fluid mechanics and thermodynamic to analogize internal condensation on the basis of container charging and discharging, and find theoretical judging method of internal condensation.

因此本文的研究工作以最基本的气动系统——容器的充放气过程为出发点，首次用解析法，利用流体力学和热力学理论分析容器在充放气过程中的内部结露现象，找出对内部结露问题的理论判别方法。

The ability of the chiral bis-imidazolium salt for asymmetric catalytic benzoin condensation has been probed. It has shown good catalytic activity for benzoin condensation, but no enantioselectivity has been detected.

探讨了手性双咪唑鎓盐不对称催化苯偶姻缩合反应的性能，结果表明其对苯偶姻缩合反应具有高的催化活性，但未能显示对映选择性。

Particles which are counted in condensation nucleus counters are very often not activated in natural cloud or fog condensation.

在凝结核计数器中被计下的粒子，在天然云或雾的凝结中往往很不活化。

According to phase change theory of thermodynamics, the condensation conditions of reacting solid products are concluded and the productivity and critical size of condensation nucleus are given.

根据热力学相变理论，总结了反应固相生成物发生凝结的条件、凝结核的生成速率和临界尺寸。

Numerical tests are also conducted to investigate the microphysical effects to the mesocale convective systems. The evaporation of raindrops can strengthen the surface "cold pool" to decease the temperature of rainfall center. The condensation of vapor can lower the air pressure and increase the convergence and updraft so that the convective echo develops stronger. The melting of graupel can cool the air to restrain the convective activity. The falling of precipitation particles can increase the downdraft and induce the outflow nearly the surface. The effect of condensation is the most important among all the microphysical processes. It can change the whole structure of cloud system.

微物理过程对对流系统发展和维持有重要作用：强降水的雨滴蒸发过程会加强"冷池"效应，同时增强了雨带南侧原有的地面中尺度辐合线；凝结潜热在低层诱发了与回波相应尺度的中尺度低压，增强了辐合和上升运动，促进对流发展；霰的融化吸热通过冷却大气会不利于气压下降、气流辐合抬升等过程，降低对流不稳定能量，减缓对流发展；重力拖曳使气块冷却降温，降低对流不稳定能量，并且使低层的气压升高、气流辐散，在近地面附近产生出流，加强地面中尺度辐合线的强度。

In this article, the latest progress in the study of DNA condensation in vitro induced by multivalent cations is reviewed covering the mechanism, process, influencing factors of DNA condensation and its recent applications in gene transfection.

本文综述了近十几年来以多价阳离子为缩合剂诱发的DNA体外缩合的研究进展，着重介绍了缩合的机理、过程、影响缩合的因素以及应用于转基因的最新成果。

Hydroxybutyraldehyde, which is main material of synthesizing 3-hydroxybutyric acid was prepared through the aldol condensation of acetaldehyde in this paper. The properly reaction conditions of acetaldehyde condensation and paraldehyde depolymerization was studied and obtained.

本文自行制备了氧化反应的主要原料3-羟基丁醛，并对乙醛羟醛缩合反应及三聚乙醛的解聚反应进行了初步研究，确定了反应的最佳条件。

Media Help Everyday we are exposed to the steam often divided into two, one, the boiler steam - saturated steam 2, thermal power plants out of steam - superheated steam 1, a relatively stable temperature and pressure saturated steam, temperature lower than 250 ℃, working pressure lower than 1.6Mpa 2, superheated steam temperature and pressure changes of a high base temperature up to 400 ℃, working pressure is lower than 4.0Mpa For the first steam, we usually use soft sealing steam solenoid valve as follows: Structural characteristics This valve is a valve and Balance valves main valve by the two vice components with the second open valve Pilot solenoid valve Heat: electromagnetic part, some with special high temperature seals and sealing materials, electrical materials, and apply a variety of insulation measures Wear: selection and reasonable Globe Valves guidance suite valve cup and clever use of fluid lubrication, reduce wear, increase life expectancy Resistance to condensation: condensation of steam pipeline valve on the steam water is an important factor in action, the valve will not affect the condensation water Other uses - soft sealing steam solenoid valve This series solenoid valve can Safety valves be widely used in textile, printing, chemicals, plastics, rubber, pharmaceutical, food, building materials, machinery, electronics, surface treatment and research sectors and bathroom, dining room, air conditioning automatic control system.

介质说明日常生活中我们接触到的蒸汽常分为两种，1、锅炉蒸汽-饱和蒸汽 2、热电厂出来的蒸汽-过热蒸汽 1、饱和蒸汽温度压力相对稳定，电动阀门执行器温度低于250℃，工作压力低于1.6Mpa 2、过热蒸汽温度压力变化基数较大温度最高可达400℃以上，工作压力则低于4.0Mpa 对于第一种蒸汽，我们通常会选用氧气专用阀、铜阀门软密封的蒸汽电磁阀如下：结构特点本阀是由副阀和主阀两大部件构成的先导式二次开阀的电磁阀耐热：电磁部分、密封件部分用特种耐高温电工材料和密封材料，并应用了各种隔热措施耐磨：选材合理，电站阀门阀杯和导向套间巧妙地利用流体的润滑作用，减少磨损，提高寿命耐冷凝：蒸汽管道的冷凝水是影响蒸汽电磁阀动作的重要因素，本阀则不受冷凝水影响其他用途-软密封蒸汽电磁阀本系列电磁阀还可广泛地应用平衡阀纺织、印刷、化工、塑料、橡胶、制药、食品、建材、机械、电器、表面处理和科研部门以及浴室、食堂、空调等自控系统。

The operation of condensation equipment primarily ensures the most favorable vacuum degree of condenser, reduces supercooling and oxygen content of condensation water and guarantees the quality of condensation water.

凝汽设备的运行主要是能保证凝汽器达到最有利的真空度，减少凝结水的过冷度和含氧量，保证凝结水达到合格的水质。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。