可能的机制是交换扩散机制。
通过初步试验，探讨了用离子交换扩散渗析膜有选择性地回收酸分离铀的机理及影响因素。
Based on experiments, the diffusion mechanism and influential factor of selective uranium separation and acids recovery with ion exchange diffusion dialysis membranes are introduced.
双方并就当前国际军控形势、非洲地区问题、《不扩散核武器条约》第七次审议大会等交换了看法。
The two sides also exchanged views on the current international situation in arms control, regional issues in Africa and the 7th Nuclear Non-Proliferation Treaty Review Conference.
交换机制是可能的扩散机制。
介绍了F4112离子交换膜的材料结构、性能参数及膜电阻、膜中扩散系数的测定方法。
The determination of material structure, performance parameters and membrane resistance, membrane diffusion coefficient of the F4112 ion exchange membrane were introduced.
在壳聚糖膜的制备成型过程中，会发生多种物质的扩散和交换，以及多种离子的结合与解离。
During the formation of the chitosan membrane, there arises the diffusion and exchange of multiple substances, and the combination and decomposition of various ions.
阴离子交换膜扩散渗析技术已被成功地应用于钢铁废酸的回收处理工程。
Diffusion dialysis using anion exchange membrane has been successfully used in separating waste steel pickle liquor.
文中首先给出了由我们建立的床面泥沙交换理论导出的非均匀沙扩散方程的边界条件。
The boundary condition at bed surface of diffusion equation of nonuniform sediment is derived based on the concept of exchange intensity of stochastic theory by the author.
肺泡壁薄，多毛细血管，由网状的弹性纤维和胶原纤维加以支撑，经由扩散交换气体。
Their thin walls contain numerous capillaries, supported by a mesh of elastic and collagenous fibres; gas exchange Between them occurs by diffusion.
概述了同位素封闭体系内的矿物氧扩散和同位素交换机制及其在地质速率计上的应用。
Oxygen diffusion in minerals and accompanied isotopic exchange inclosed systems are discussed with special application to geospeedometry.
考虑跳扩散模型中交换期权的定价问题。
The problem of pricing exchange options in a jump-diffusion model is considered.
研究的区域包括阳极和阴极的流道、扩散层和催化层以及质子交换膜在内的整个单电池。
The studied domain consists of flow channels, diffusion layers and catalyst layers of both the anode and cathode, and the membrane.
讨论了质子交换膜燃料电池运行电流密度和温度、阴极和阳极加湿温度、气体扩散层孔隙率等参数对以上结果的影响。
The effect of the current density and fuel cell temperature, humidified temperature of cathode and anode, porosity of porous diffusion layer on the results mentioned above are discussed.
研究的区域包括阴极和阳极的流道、扩散层、催化层和质子交换膜。
The studied domain consists of fluid channels, diffusion layers and catalyst layers of anode and cathode, and membrane.
首先，对MEA的制备及优化研究，主要从热压工艺参数、催化层组分优化、扩散层和质子交换膜的选择等方面考虑的。
First, Fabrication and optimization of MEA are studied in many aspects, for example hot press parameters, components of catalyst layer and diffusion layer, PEM thickness, etc.
结果表明：充电和放电时交换电流及扩散系数变化不同。
The result shows that the change of the exchange current and lithium-ion diffusion coefficient is different in the charge and discharge process.
该公式是标准跳扩散模型下的欧式期权及欧式交换期权定价公式的推广。
These pricing formulas generalize the corresponding European option and European exchange option pricing on jump-diffusions.
结果表明，该离子交换过程近似符合颗粒扩散控制；
The results indicate that this ion exchange process is controlled by particle diffusion;
提供用于燃料电池例如质子交换膜燃料电池的气体扩散介质。
A gas diffusion media for a fuel cell, such as a proton exchange membrane fuel cell, is provided.
低于玻璃应变温度，互扩散系数几乎不依赖玻璃中的氧化钠浓度，而略随离子交换时间增加而增大。
Below the glass strain temperature, interdiffusion coefficients are almost independence of sodium oxide concentration in the glasses and somewhat increase with long ion exchange time.
气体交换：有关对流与扩散的物理学基础。
Gas exchange: The essential physics of convection and diffusion.
通过间接判断法，确定离子交换过程为颗粒扩散控制过程。
The mechanism of particle diffusion control for ion exchange process was determined by indirect judgment method.
海—气热通量的变化对海—气的热量交换具有重要的影响，能够很大程度上影响局部海域温排水扩散情况。
The variation of air-sea heat fluxes have important influence on heat exchange between ocean and atmosphere, and greatly affects the heat diffusion of cooling in local area.
个别离子的迁移率对交换速率有影响，粒子扩散系数随平衡分数而改变。
It was found that the rate of ion exchange depends on the migration of individual ions and that the particle diffusion coefficient changes with the fractional attainment of equilibrium.
吸附交换速率主要受液膜扩散控制；
The exchange-adsorption rate is mainly controlled by liquid film diffusion;
作者综述了电渗析法、 离子膜电解法和扩散渗析法等离子交换膜技术处理冶金工业废液的研究与应用现状。
The study and application of it have been summarized in treating metallurgy liquid waste with the technique such as electrodialysis, electromembrane processing and diffusion dialysis, etc.
文中最后列出一些特殊纯生跳跃扩散型交换期权的定价的例子。
Finally, we list some results of special cases of the pricing of exchange options in the pure birth jump-diffusion process.
例如扩散、离子交换、质子交换和离子注入等。
This technique includes diffusion, iron-exchange, proton-exchange and iron-infusion.
例如扩散、离子交换、质子交换和离子注入等。
This technique includes diffusion, iron-exchange, proton-exchange and iron-infusion.
应用推荐