• With this model, the pressure drop curve of well testing is interpreted, and mobility ratio, diffusion ratio, sweep radius of each area and some other parameters are solved.

    利用模型可以对火烧油层注气井曲线进行解释求解流度扩散比以及各区波及半径参数

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  • With the study of the cement flow rule in the crack, we analyzed the influence to diffusion radius by the grouting pressure, cement rheological parameter and grouting time.

    通过研究水泥浆液裂隙中的流动规律分析灌浆压力、浆液流变参数灌浆时间扩散半径影响

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  • The pressure equation is solved by mixed finite element method, while the concentration equation is solved by finite difference-streamline diffusion finite element method, that is, using SD f.

    提出了解不可压缩两相溶驱动问题的一种新的数值方法压力方程混合有限元求解浓度方程差分流线扩散方法求解。

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  • The integral N-S equation is regarded as a special diffusion equation and the pressure term, convective term are regarded as source terms.

    N S方程看作特殊扩散方程,将压力对流项看作是,得到一个积分方程。

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  • The pressure distribution of spherical and cylindrical flow is derived from the diffusion equation, and solutions under three conditions are given.

    扩散方程出了球形流动柱形流动压力分布,确定了三种条件下的解。

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  • Although the interface has the features of melt, and pressure welding, the molten and diffusion welding cannot explain the bonding mechanism of explosive welding.

    实验表明,爆炸焊接界面虽然具有熔化扩散压力特征,但不能用熔焊和扩散机理来解释爆炸焊接界面的成因。

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  • Some key parameters such as gasoline vapor mole quality and compression factor, vapor pressure, and vapor-air diffusion coefficient were decided and recommended.

    汽油蒸气一些关键物性参数油气摩尔质量压缩因子、蒸气及油气——空气扩散系数等给出了推荐值或计算式。

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  • These factors include magma composition, convection, diffusion, thermal gradient, oxygen fugacity, temperature, pressure, the shape of magma chamber etc.

    影响韵律形成因素很多,通常包括岩浆成分对流作用、扩散作用梯度逸度温度压力

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  • Mainly describe the design parameters of aluminium alloy diffusion and the development process, and also solve the design of pressure device.

    介绍铝合金扩散焊炉设计参数研制过程解决加压装置的设计。

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  • How to use the program PSPICE to simulate nonlinear circuits formed by diffusion resistors in pressure sensor and analyze the simulation results compared with experiment are discussed.

    本论文主要讨论怎样利用PSPICE软件模拟压力传感器扩散电阻形成非线性电路

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  • An ethylene diffusion flame has been investigated at normal pressure using synchrotron vacuum ultraviolet (VUV) photoionization and molecular-beam mass spectrometry.

    本文利用探针取样法结合同步辐射真空紫外光电离分子谱技术研究了常压下的乙烯扩散火焰

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  • In this paper, a gas diffusion electrode was made by hot pressure method and character by XRD.

    本文采用热压法制备了一种多孔气体扩散电极对其进行XRD表征。

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  • A dynamic equation of plasma density is constructed about ionization, recombination, diffusion and plasma flow which is produced by inhomogeneous pressure.

    考虑等离子存在电离复合两种互逆过程及扩散压力均匀引起的等离子体流动建立密度动力学方程

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  • The law of fracture pressure of grouting is affected by the gap width notably, and the rheological parameters of grout play a key role in computing the diffusion radius.

    计算分析了劈裂注浆过程劈裂压力缝隙宽度变化以及流变参数扩散半径的影响规律

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  • The molecule flow diffusion equation and the boundary conditions are given. The solution with linear approximation of entrance pressure is presented.

    给出了分子扩散方程边界条件,推导出入口压力线性近似下方程的

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  • It shows that the grouting diffusion radius of Bingham fluid is related to the grouting pressure difference, gap width, flow velocity and time-dependent behaviors of rheological parameters.

    由公式可知,土体劈裂压力裂隙宽度、浆液流速流变参数变性影响扩散半径的重要因素。

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  • Diffusion bonding under pulsatile pressure is an ideal bonding method, which can accelerate diffusion, reduce the amount of intermetallic compound and improve its distribution.

    脉冲加压扩散促进扩散过程,减少金属间化合物形成,改善分布,一种较有前景的扩散焊方法

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  • In process parameters, the rf power and pressure affect the number, energy and composition of the basic elements, the substrate temperature effect the surface diffusion and atomic bonding.

    工艺参数射频功率压强综合影响数量能量以及成分,基片温度主要影响表面扩散原子成键

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  • Research showed that: during the transient liquid phase diffusion bonding process, there exists a critical value about the choice of the bonding pressure.

    研究表明瞬时液相扩散连接,压力施加降低了液相的最大宽度,同时降低降熔元素的总量,可以减少完成等温凝固所需要的时间。

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  • The result shows that the molecular sieves membrane has rather separation performance for N2 and Oa and its separation mechanism is the interaction of Knudsen diffusion and pressure diffusion.

    分离结果表明,所合成介孔分子筛空气具有一定的分离性能分离空气的机理扩散压力扩散共同作用的结果。

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  • Permeability of concrete and its correlation with chloride ion diffusion coefficient under different test conditions including water pressure method and tension method are studied.

    本课题主要研究混凝土水压张力法试验条件下水在混凝土中的渗透行为以及离子扩散系数相关性

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  • The increase of lobe diffusion angle results in the increase of velocity circulation at the lobe exit section, but it raises the mixing loss and lowers the pressure recovery coefficient.

    扩张增加可提高速度环量,但是流动混合损失增加,总恢复系数减小

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  • A new surface strengthening method, RE-Multi-Element diffusion, for HSS cutters by positive-negative pressure pulse process is investigated.

    本文主要介绍采用负压脉冲稀土多元共渗技术高速钢刀具表面强化一种方法

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  • The reason of pressure fluctuation for BF gas system is analysed, the related measure on how to avoid the fluctuation, reduce the diffusion and meet the users demand is put forward.

    对天津天铁冶金集团有限公司高炉煤气系统压力波动原因进行了分析,并如何避免系统波动,降低放散量,满足生产用户需要提出了相应的措施

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  • In a certain inlet velocities, vaneless diffusers with diffusion type have higher pressure recover coefficient and can reduce the radial size.

    采取扩张型非平行壁无叶扩压器,一定进口速度下,可望较高压力恢复系数可以缩短径向尺寸

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  • The results showed that it is feasible to obtain a metallurgical bonded interface of copper and steel by inner-pressure diffusion technique.

    结果表明内压扩散复合方法实现了界面冶金结合。

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  • The treatment with high pressure oxygen is to increase the blood oxygen capacity and tension of the body so that the distance of oxygen diffusion in the myocardial tissues can be improved.

    高压氧治疗就是使机体含量增加,血氧张力提高,进而增加心肌组织内林弥散距离

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  • The main patterns of substance transport between shale and water based mud under low pressure are flow and diffusion.

    常压页岩水基泥浆之间物质迁移主要流动扩散方式进行。

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  • The main patterns of substance transport between shale and water based mud under low pressure are flow and diffusion.

    常压页岩水基泥浆之间物质迁移主要流动扩散方式进行。

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