Even in these areas, the lack of infrastructure in a spread throughout the territory and it is one of the main reasons for the limited diffusion.
即使在这些地区，也到处都面临着基础设施欠缺的问题，这也是传播受限的主因之一。
Research mechanism of diffusion and infiltration of concrete, analyze the main influence factor of the concrete permeability and summarized the method of testing of the penetrating index of concrete.
研究了水、氯离子及气体在混凝土中的渗透与扩散的机理，分析了影响混凝土渗透性的主要因素及有待进一步研究的方向，并总结了混凝土渗透性指标的测试方法。
The optimum design of Controlled Diffusion Airfoils (CDA) is one of the main research fields in subsonic and transonic profile design for multistage compressor.
可控扩散叶型（CDA）的优化设计是目前国外对亚音、跨音速压气机叶型研究的主要内容之一。
Regardless of hysteresis of air system, the main factor that influences dynamic response of fuel cell is diffusion concentration polarization, which restricts the change rate of stack current.
不考虑空气系统的时间滞后，影响电池动态响应时间的主要因素为扩散浓差极化，它限制了电流的变化率。
This paper has main researches on the molecular diffusion in the process of CO2-oil displacing, carrying our deep experimental researches in PVT cell and porous medium.
本文主要研究注CO2驱油过程中的分子扩散问题，分别从PVT筒及多孔介质两方面进行深入的实验研究。
This paper mainly introduces structure and prinicipe of mouth bulging die for diffusion tube, calculation method of blank size and forming force, design technology of main work parts.
主要介绍扩散管胀口模具的结构与工作原理、毛坯尺寸及胀口力计算方法和主要工作部件的设计技术。
The diffusion of coalbed methane in coal reservoirs is defined that the main process of coalbed methane desorbed from coal matrix pore surface migrated to cleat system.
煤层气在煤储层中的扩散是指从煤基质孔隙表面上解吸的煤层气运移到割理系统的主要过程。
Industrial diffusion effect is one of the main effects which the high-tech industries promote economic growth.
产业扩散效应是高科技产业带动经济的主要效应之一。
Grain sliding controlled by grain boundary diffusion is the main mechanism for low temperature superplastic behavior.
晶界扩散控制晶界滑动是低温超塑行为的主要机理。
The results show: external diffusion is the main resistance for mass transfer, and increasing air velocity and decreasing particle diameter are effective measures to decrease mass transfer resistance.
研究结果表明，外扩散过程是传质的主要阻力，增大风速、减小吸附剂颗粒直径是减少传质阻力的有效措施。
The main wear mechanisms are adhesion, diffusion and fatigue.
磨损机理主要是粘结磨损、扩散磨损以及疲劳磨损。
The main influencing factors on electrolysis efficiency of the method were: oxide cathode conductivity, O2- diffusion, cathode potential, anode material.
影响该方法电解效率的主要因素有：氧化物阴极导电性、O2-扩散、阴极电势、阳极材料。
The main conversion efficiency of solar cell factors such as stray resistance, diffusion length and compound rate were analyzed, too.
对寄生电阻、扩散长度和表面复合速率等影响太阳能电池转换效率的主要因素进行了深入分析。
The main patterns of substance transport between shale and water based mud under low pressure are flow and diffusion.
常压下页岩与水基泥浆之间的物质迁移中主要以流动和扩散方式进行。
Theoretical analyses show that the main current mechanisms of the diodes are diffusion current and gr current.
通过理论分析得到扩散电流和产生复合电流是实验芯片的主要电流机制；
The diffusion zone width of main alloying elements increases and hardness of the friction weld zone near TC4 titanium alloy side improves after post-weld heat treatment.
经焊后回火热处理后，主要合金元素沿焊合区的扩散区宽度增大；焊合区钛合金侧硬度值显著提高。
Agricultural Science and technology Park (ASTP) is a main approach to diffusion of agricultural technology innovation.
农业科技园是我国农业技术创新扩散的主要途径之一。
However, the main micro-models dealing with the sustainable growth haven't analyses the technology diffusion though they recognized the importance of technological progress.
但当前主要的可持续增长宏观模型尽管已经认识到技术进步的重要性，却都没有对此进行深入的分析。
The main reason of the above mentioned results is attributed to different diffusion mechanisms which are caused by different element natures in the alloy system.
产生这种现象的原因主要是合金体系中元素性质不同，使得反应合成制备中元素的扩散机制不同所造成的。
As many a market instruments, the main function of the Bass diffusion model to describe and predict the number of newly developed consumer durables market to buy.
作为诸多市场工具中的一种，巴斯扩散模型的主要功能是对新开发的消费者耐用品的市场购买数量进行描述和预测。
The main important work of this paper: (1). Deeply studied data diffusion mechanisms and some basic ideas of relative routing algorithms for wireless sensor network.
本文主要工作如下：(1)深入研究了传感器网络的数据扩散机制及其相关路由算法理论基础。
The main factors influencing technical diffusion are abstracted to establish the 3D coordinate of technical diffusion field, which sets the diffusion space for technical diffusion.
将影响技术扩散的主要因素加以抽象，建立了技术扩散场的三维空间坐标，为技术扩散设定了扩散的空间。
Methods Introducing the Fuzzy information diffusion method to evaluate the water environment quality of Xi′an city, and using correspondence analysis to analyze the main pollution cause of sections.
方法首先采用一维模糊信息分配方法对水环境质量进行评价，其次应用对应分析法对各断面的污染成因进行分析。
Diffusion behavior of adatom and ad-dimer is one of the main researching object in the field of thin film physics.
表面吸附原子和表面二聚体的扩散是薄膜表面物理领域研究的重点课题之一。
This paper reviewed the main theoretical models and the effective factors of diffusion process during the film formation.
介绍了成膜扩散的主要理论模型及影响因素。
The main purpose of this article is to solve European option pricing and hedging in a jump-diffusion model in financial mathematics.
本文的主要目的是解决金融数学中标的资产带跳的欧式期权的定价问题和套期保值。
WU m F. Study on diffusion welding with low temperature of al alloy and stainless steel and diffusion behavior of main elements [d]. Zhenjiang: Jiangsu University, 2011.
[5]吴铭方。铝合金与不锈钢低温扩散焊及界面主组元扩散行为研究。[d]镇江：江苏大学，2011。
A mathematical model, which has the form of reaction-diffusion equations and is describing the dynamics of self-organization process, is established from the main reactions.
从主要反应式中得到一个反应扩散方程组形式的，描述其自组织过程动力学的数学模型。
The main function for the performance of the carbon monoxide diffusion barriers, medium degree of airway obstruction and (or) restrictive ventilation abnormalities.
肺功能主要表现为一氧化碳弥散障碍、中等度气道阻塞和(或)限制性通气异常。
The main function for the performance of the carbon monoxide diffusion barriers, medium degree of airway obstruction and (or) restrictive ventilation abnormalities.
肺功能主要表现为一氧化碳弥散障碍、中等度气道阻塞和(或)限制性通气异常。
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