In a shell-and-tube phase change heat exchanger,the thermal resistance of the phase change material inside the phase change heat storage tube is much larger than that between the tube and the water flow in the shell-side.
建立了内部设置肋片的贮热管放热过程的数理模型,分析比较了不同的肋片参数,如肋片布置密度、长度及厚度等因素对贮热管放热效果的影响,并通过瞬态传热过程的计算,确定了与多种肋片布置方式所对应的相变贮热管的有效导热系数。
The electron beam welding(EBW) of TC4 titanium alloy was processed by CO_2 laser phase transformation treatment,and the effects of assistant gas, laser power and spot diameter,etc.
利用CO2激光相变热处理技术对TC4钛合金电子束焊缝进行了处理,研究了激光功率、光斑直径、辅助气体等激光工艺参数对电子束焊缝残余应力分布的影响。
a thermionic tube having five electrodes.
有五个电极的热离子管。
a thermionic tube having four electrodes.
有四个电极的热离子管。
a thermionic tube having three electrodes.
有三个电极的热离子管。
vacuum thermionic tube detector
真空热离子管检波器
a thermionic tube having two electrodes; used as a rectifier.
有两个电极的热离子管；作用相当于调整器。
electronic valves and tubes
热离子、冷阴极或光阴极电子管、晶体管
the branch of electronics dealing with thermionic phenomena (especially thermionic vacuum tubes).
电子学中有关热离子现象（特别是热离子真空管）的分支。
Study on Sealing Process of PAW for Micro-groove Heat Pipe
微沟槽热管等离子弧焊接封口工艺研究
Saturnian low-energy thermal plasmas
土星低能热等离子体
space thermionic auxiliary reactor
空间热离子辅助反应堆
STEPS (Solar Thermionic Electrical Power System)
太阳热离子电源系统
bolometry of plasma
等离子体辐射热测量
physics of hot plasma in the magnetosphere
磁层热等离子体物理学
laser-induced thermionic emission
激光感生热离子发射
Hydrothermal Preparation and Physical Properties Study of Titanate Nanotube Doped with Ions;
离子掺杂钛酸盐纳米管的水热合成及物理性能研究
The Effects of Controlled Plasma by the External Magnetic Field on Fluid Flow and Heat Transfer of Aeroengine Nozzle;
磁控等离子体对航空发动机尾喷管流动传热的影响
The synthesis of carbon nanotubes by Co_2O_3/FeS catalyzing from methane using thermal plasma jet
热等离子射流法Co_2O_3/FeS催化裂解甲烷制备碳纳米管的研究
STUDY ON MECHANICALLY DRIVEN SEPARATE-TYPE HEAT PIPE--HEAT CIRCUIT;
机械驱动式分离型热管-热环的研究
