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1)  gaseous fluid
气体流体
2)  gas fluid
气体型流体
1.
This paper discussed the conversion technology of gas drilling-the conversion of drilling fluids from gas base fluids to gas fluids,from gas fluids to water base fluids,and the direct conversion from gas base fluids to water base fluids,and the maintenance of drilling fluids after the conversion.
论述了由气基流体转化为气体型流体、由气体型流体转换为水基钻井液、气基流体直接转换为水基钻井液的工艺配套技术,以及替浆后的水基钻井液性能维护处理等工艺技术。
3)  Gas flow rate
气体流量
1.
MWNT were deposited with different gas flow rate so as to systematically investigate the effect of environment on the growth behavior of MWNT.
用化学气相沉积法裂解乙炔制备无序多壁碳纳米管,以Fe/S iO2粉状物作为催化剂,考察了气体流量等环境因素对碳纳米管生长的影响。
2.
The parameters that affect the concentration of the generated ozone,such as the geometry of electrode system,gas flow rate,discharge time,discharge voltage,peak current and voltage of electrodes and the content of oxygen,were discussed,respectively.
研究了电极结构、气体流量、放电时间、放电电压、各电极的电流电压峰值、是否添加氧气等与产生臭氧浓度之间的关系。
3.
For reactive sputtering,the gradient films with varying ratio of chemical component can be prepared by changing gas flow rate continuously.
对于反应溅射,可通过连续改变反应气体流量制得化学成分比连续变化的梯度薄膜。
4)  gas convection
气体对流
1.
The degree of gas convection can be characterised by the Rayleigh number (Re)and the degree of heat-transfer by gas convection can be characterised by Nusselt number( Nu ) in the crystal growth of oxides by means of CZ method.
引上法生长高温氧化物晶体时,热腔中的气体对流状态由雷诺数(Re)决定,气体对流传热由努赛尔数(Nu)决定。
5)  gas flow
气体流动
1.
Influence of KTB place on gas flow field in RH vacuum chamber;
KTB氧枪位置对RH真空室气体流动的影响
2.
A differential equation system for constant-velocity flowing state of single-phase gas was obtained according to characteristics of gas flowing in gas well bore.
阐述了不同地层温度与井口压力下井筒气体流动参数的分布 ,并说明了不同地层温度下 ,井口回压对井底流压与产量的影响。
3.
The gas flow in blast furnace with various burden charge patterns has been analyzed by numerical simulation with finite difference method.
用有限差分法对高炉内气体流动行为进行了数值解析,并系统地分析了不同料床结构对气体流动行为的影响。
6)  Gas Flow Field
气体流场
1.
Finite Element Simulation of the Gas Flow Field in the Dry Gas Seal Spiral Grooves;
干气密封螺旋槽内气体流场的有限元模拟
2.
Numerical simulation of gas flow field in chemical vapor infiltration reactor;
化学气相浸渗反应器内气体流场的数值模拟
补充资料:HeⅡ的二流体模型(two-fluidmodelofHeⅡ)
HeⅡ的二流体模型(two-fluidmodelofHeⅡ)

在低于λ点相变温度Tλ附近,毛细管中测出液HeⅡ的黏性系数η比正常的HeⅠ液体的要小1011倍,但在旋转圆柱容器中测出的η值比正常HeⅠ的相关不大,这个矛盾由Tisza于1938年提出二流体模型和1941年朗道独立地从量子流体力学给出了更完善的二流体模型予以解释,并解释了其他实验现象。这个模型认为HeⅡ液体由密度为ρs,而流速vs是无旋的`(\nabla\timesbb{v}_s=0)`、黏性系数ηs=0,且是零熵的超流部分(s),和具有正常液体性质的正常部分(n)这两个部分组成,而液体HeⅡ的总密度ρ=ρs ρn,ρs和ρn随温度T的变化如下:

实际上,正常和超流部分同是4He原子组成,正常流体用热激发产生的声子或旋子这两种准粒子来描绘(参见“朗道超流的唯象理论”),在0<T<Tλ间是正常和超流这两种不同性质液化按不同比例的混合液体,两者之间没有摩擦。超流液体不需要压力差照常可在通道中流动。二流体模型解释了热机械效应等,还预言了在HeⅡ液体中存在第二声波,即熵波或称热波,并为实验所证实。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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