concentration diffusion
英 [ˌkɒnsnˈtreɪʃn dɪˈfjuːʒən]
美 [ˌkɑːnsnˈtreɪʃn dɪˈfjuʒən]
浓差扩散
双语例句
- Concentration coefficient of diffusion
扩散[的]浓度系数 - Numerical simulation of concentration diffusion of harmful gas in heading face with forced ventilation
压入式通风掘进面有害气体浓度扩散数值模拟 - This essay uses k ε model to predict the three dimensional concentration diffusion properties numerically.
利用k-ε湍流模型对室内三维浓度扩散特性进行了数值预测。 - In the certain diffusion time the relation of gas concentration and diffusion depth is parabolic.
得出在一定的扩散时间内，气体浓度与扩散深度之间为抛物线关系； - Based on the non Newton fluid mechanics and the concentration diffusion theory, the theoretical analysis and study and the derivation of equation on probable grouting range and effectiveness have been made.
基于非牛顿流体力学及浓度扩散理论，对灌浆可能达到的范围和灌浆效果评价进行了理论分析研究及公式推导。 - Concentration distribution expression of gas diffusion, reaction process at limited distance in small diameter pipe containing solids, the relation of gas concentration, diffusion time and diffusion distance have been derived by the second Fick's low.
从费克第二定律出发，推导了气体在装有固体颗粒的小直径圆形管中有限扩散距离内扩散-反应过程的浓度分布表达式以及气体浓度与扩散时间和扩散距离的关系。 - Discussion on concentration and diffusion of the regional seismicity before and after some great earthquakes
大地震前后区域地震活动聚散及其讨论 - Concentration distribution expression of hydrogen diffusion process in multilayer polymer shells, that is the relationship among hydrogen concentration diffusion, time and diffusion distance was derived based on the second Fick's law.
从Fick第二定律出发，推导了氢气在多层球壳中，扩散过程的浓度分布表达式，即氢气浓度与扩散时间和扩散距离的关系。 - The ratio of the square of certain concentration gas diffusion depth and diffusion time is constant when it diffuses and reacts through the solids bed.
一定浓度的气体通过固体颗粒层扩散-反应时，其扩散深度的平方与扩散时间的比值为常数。 - In this paper, the method and some skills of drawing isogram and leeward axial graph of concentration about diffusion of contaminant in environmental forecasting are presented.
本文介绍了在大气环境影响预测分析中污染物诉散的浓度等值线图和下风向轴线浓度图的作图方法和某些技巧。 - The basic types and ecological behavior of spatial relationship are analysed, such as the concentration and diffusion, the growth and succession, the inheritance and break or meeting emergency, the symbiosis and competition, the autoeciousness and stranglehold/ invasion.
分析了集聚与扩散、增长与演替、遗传与突变（应激）、共生与竞争、寄生（绞杀）与袭夺等城镇群体空间关系的行为方式。 - Large temperature and concentration differences taking place in CVD process lead to natural convection and concentration diffusion which interact with forced convection and complex reactor geometries.
在CVD过程中，存在着大的温度差和浓度差，将引发自然对流和浓度扩散，它们又与气体的强迫流动以及反应器的几何尺寸和形状相互影响。 - Simulation of High Concentration Phosphorus Diffusion
高浓度磷扩散的模拟 - The factors influencing methane diffusion mainly include methane concentration, diffusion distance, mean free path and pore distribution in coal seams;
影响甲烷扩散的因素主要是甲烷浓度、扩散距离、平均自由程和煤岩孔隙分布； - Effect of Enrich Gas Concentration of Diffusion Period on the Case of Ion Carbonitrided Layer
离子碳氮共渗扩散期富化气浓度对渗层的影响 - Acid concentration distribute form of acid fracturing in sandstone is as same as that in carbonate, just boundary condition is different, and surface concentration and diffusion coefficient in the equation are comparatively difficult to confirmed.
砂岩酸压酸沿裂缝的浓度分布与碳酸盐岩酸压形式一样，只是边界条件不同，而且方程中表面浓度与扩散系数确定相对较为困难。 - Research for the distribution of gas concentration in diffusion flames is of great importance to heat exchange and temperature distribution in combustion chambers or heating furnaces.
火焰中的浓度场（燃烧场）对于炉内的温度分布及热交换过程有重要影响。 - The heating resistance was designed to use high concentration B diffusion to heat the liquor above 70 ℃, the diode was produced by short BC dynatron structure.
加热电阻设计为浓硼扩散电阻，可将被测溶液加热到70℃以上。测温二极管采用的是CB短接三极管结构。 - However, domestic research on the concentration and diffusion of tourist flows based on spatial field effect is still rare.
但国内基于空间场效应对旅游流集聚与扩散规律的研究尚不多见。 - With the mass transfer process research in chemical engineering gradually deepened and its application field expanded, concentration distribution, diffusion coefficient and mass transfer coefficient have become the extremely important factors as well as the design and development in chemical engineering.
随着化工传质过程研究的逐渐深入以及其应用领域的不断扩展，浓度分布、扩散系数、传质系数等实验数据在研究传质过程、计算传质速率及化工设计与开发中成为极其重要的因素。 - First of all, we focus on D-S model and OTT model, and analyze centripetal force and centrifugal force which lead to economic concentration and diffusion, through local market effect, price index effect, market crowding effect.
首先，本文借鉴了新经济地理学的D-S模型和OTT模型，通过本地市场效应、价格指数效应、市场拥挤效应三个方面，阐述了导致经济集聚和扩散的向心力和离心力。 - The formation of these four models is inseparable from the role of concentration and diffusion mechanism 、 coupling mechanism and cost-effective mechanism.
这四大模式的形成离不开集聚扩散机制、耦动机制和成本效益机制的作用。 - In addition to the indoor simulating test of deicer environment, transport model of chloride erosion has been study under the conditions of dry-wet cycle, which belongs to the coupling relationship between chloride concentration diffusion and convection transport in the unsaturated porous state. 3.
基于除冻盐环境的室内模拟试验，研究了氯盐干湿循环条件下，氯离子在混凝土中的输运模式，认为其过程属于孔隙非饱和状态下的离子浓度扩散和对流耦合输运方式。 - The chloride concentration and diffusion coefficients increase with numbers of freezing-thawing cycles.
氯离子扩散系数随着冻融循环次数的增加而增加。 - The clear concentration diffusion layer outside the electrode detected from the reconstructed images is the key feature of the current oscillation phenomenon.
从重构的图像上看到电极外部清晰的浓度扩散层是电化学振荡现象的一个重要特征。 - Fick diffusion model was utilized to calculate the diffusion coefficients of carbon dioxide in carbon membrane. The concentration dependence of diffusion coefficients was investigated and calculated diffusion activation energy.
运用Fick扩散模型计算了CO2在炭膜内的扩散系数，研究了扩散系数的浓度依赖性，计算了扩散活化能。 - The rules of evolvement of the interior spatial structure of port-hinterland are ports transition from scattered to concentrate, port city by relying on port into and port detachment, the traffic economic belt in different stages concentration and diffusion mutual growth.
港口-腹地系统空间结构演变的规律为：港口由分散向集中过渡；港口城市由依托港口转为与港口剥离；交通经济带在不同阶段集聚与扩散相互消长。 - Using the tracer to simulate the pollution in water. Taking Photos to get the concentration diffusion image in the specific times and then using digital image processing techniques to obtain two-dimensional isoconcentration contour map of pollutant concentration.
本实验用示踪剂罗丹明B模拟污染物在水体中的扩散，拍照得到不同时间下物质的浓度场图像，将图像输入计算机进行处理，最终获得对应时间条件下浓度场的二维等浓度线图。 - In MOCVD reactors there exist large temperature and concentration differences, which will lead to intense natural convection and concentration diffusion that interact with forced convection and complex reactor geometries.
在MOCVD反应器中，存在着大的温度差和浓度差，将引发强烈的自然对流和浓度扩散。 - The process of financial agglomeration is mainly determined by Pareto improvement mechanism of financial efficiency, which is mainly observed as concentration and diffusion of financial resource. The two processes are both opposite and consistent with each other.
金融集聚的过程，主要受金融效率帕累托改进机制的作用，具体表现为金融资源在空间上既集中又扩散，这两个过程既对立又统一。