换相器

The results show that the temperature change of the heat exchanger is consistent with flow pattern and the maldistribution is more and more severe with the increase of Re velues.

实验结果表明随着Re的增大，换热器出口温度分布与流量分配趋势相一致，会越来越不均匀；较大的传热温差也会增加温度分布的不均匀性。

Our research results show that the BS-PT ceramics with the compositions near the morphotropic phase boundary is a good candidate material for the piezoelectric actuator and transducers.

研究表明，准同型相界附近的BS-PT陶瓷是一种优良的压电换能器和传感器材料。

According to the tracing view of material point, a general numerical simulation algorithm is established in order to apply for refrigerant's various phase areas.

基于制冷剂流体质点追踪计算观点，建立了适用于制冷换热器各相区的通用数值仿真算法。

I Division of transducer and the welding head technology and the world's most advanced companies comparable.

我司的换能器及焊头技术能和世界最先进的公司相媲美。

The system adopt new materials and new technology,including such equipment as the following:a stainless and carbon steel-fabricated converter and dice and doughnut-type gas heat exchanger with big-orifice baffles and wavy pipes,anodically protected stainless steel acid coolers and pipes,a heat-pi...

该系统在设计中积极采用新材料、新技术，成功地应用了不锈钢和碳钢相结合转化器、阳极保护不锈钢酸冷却器及管道、热管省煤器、新型大孔板波形管碟环式换热器、DCS控制系统等。2年多的生产运行情况表明，装置运行可靠，技术指标先进，生产控制指标达到或好于设计值，总转化率达99.87%，吸收率达99.99%。

It is found that the overall heat transfer will be increased if there are more heat transfer area in the diagonal region starting from the crosspoint of two streams for crossflow heat exchanger.

在维持总传热面积不变的条件下，于叉流换热器冷热流体相交点区域，及由该点所在对角线从两侧往对角线中心区域增加局部传热面积，可改善温差场的均匀程度，从而提高效能。

The perovskite phase formation process and microstructure were investigated and also the dielectric and p...

研究表明，准同型相界附近的BS-PT陶瓷是一种优良的压电换能器和传感器材料。

The law of heat transfer and pressure drop of two-phase of kerosene-air mixture at heating, boiling and condensation is obtained, the investigation result provides important basis for design of heat exchanger and heating furnace in hydrogenation technology of oil refining industry.

通过本文的研究，得到了煤油在含有不同量的空气时的煤油空气混合物两相流在加热、沸腾和冷凝时的换热和压降规律，建立了计算关联式，为炼油工业加氢工艺中的各种换热器和加热炉的设计提供了重要依据。

It plays an important part in saving energy and decreasing the volume and weight of heat exchanger.

本文所研究的被称为强化传热革命的三维内肋管就是应用于各种换热器中单相强迫对流换热的新型强化传热管。

DC power transmission simulationmodel is set up in this paper with the Matlab software, and various faults such as single-phasegrounding short circuit, phase to phase short circuit, three-phase circuit grounding shortcircuit and inverter bridge short circuit are simulated in this model.

用MATLAB软件建立了电力系统直流输电仿真模型，模拟了单相接地短路故障、相间短路故障、换流器桥臂以及单桥故障，经过近百次仿真运行，得出了各种故障下的特性曲线，准确描述了直流输电系统在发生大扰动后的暂态过程，并从理论上进行了科学分析，得出了各种故障对换相失败的影响。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。