To improve the surface quality of flexible formation using plasma arc, its heat-flow density on unit area is controlled by controlling the swinging of the plasma arc with the alternate magnetic field.
为进一步提高等离子体弧柔性成形的表面质量，利用磁场控制弧柱的摆动状态进而控制单位面积上等离子体弧的热流密度，使之达到预期目的。
The total heat loss per unit time decreases gradually as the injection pressure, injection flow rate and injection time increase, but the decrease extent reduces gradually.
随着注入压力、注入流量以及注入时长的增加单位时间的总热损逐渐减小，但是降低幅度变缓。
In the thermal analysis, the initial temperature of billet, beat fluxes (heat flow per unit area) of positive and negative value and convections to surrounding air are considered.
热分析中考虑了坯料的初始温度、外加热源和冷却源的热流密度以及坯料和空气的对流传热。
The thermo-engineering character of the unit kiln brief was introduced. Capacity and distribution of the heat road, regulation of oil flow quantity initial were investigated.
简要介绍了单元窑的热工特性，对热负荷的大小和分配，油流量调节进行了初步探讨。
The PLC unit and the touch screen are employed for local control of the system to achieve precise adjustment to the temperature of heat source, the speed and flow of air.
控制系统用PLC作为下位机进行现场控制，通过触摸屏输入开关、频率、温度等信号，实现对使用的热源温度，风速，流量等进行精确的调节。
The mathematical model for two-phase flow and heat transfer of wet steam in exhaust pipe for a 600 MW power generating unit with direct air cooling is established.
建立了600MW发电机组直接空冷排汽管道内湿蒸汽两相流动和传热的数学模型。
The correctness of using periodic unit duct model to simulate the shell-side flow and heat transfer is confirmed for the first time, when using the corrugated tube.
本文首次验证了纵流壳程换热器选用波纹管作为换热元件采用单元流道模型对壳程进行数值模拟的正确性，同时验证了数值模拟结果的正确性。
This paper discussed the design criteria of material selection, the area of single unit, flow path, flow rate of a plate heat exchanger (PHE)in a geothermal heating system.
重点分析了板式换热器在地热供暖系统中材料、单片面积、流程、流道、流体流速等选取的原则；在综合考虑技术、经济、环境效益及节能的基础上，论述了对板式换热器优化设计的方法。
This paper discussed the design criteria of material selection, the area of single unit, flow path, flow rate of a plate heat exchanger (PHE)in a geothermal heating system.
重点分析了板式换热器在地热供暖系统中材料、单片面积、流程、流道、流体流速等选取的原则；在综合考虑技术、经济、环境效益及节能的基础上，论述了对板式换热器优化设计的方法。
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