Diffusion scatters light, essentially making the light source broader and therefore softer.
运用漫散射分散光线的实质还是使光源变广，从而达到柔化光线的目的。
The model consists of a single advection? Diffusion equation with a source term.
此模型由一个单一的具有源项的对流扩散方程组成。
It is found that the maximum concentration often occurs near source through intensive vertical diffusion, and the values of concentration decrease with the distance downwind rather rapidly.
发现由于垂直扩散较强，最大浓度常于近源处发生，且向下风方浓度衰减较快。
For the slow diffusion equation with the source term, we also obtained the finite propagation property of solution.
此外，对于具有源项慢速扩散方程，得到了解的有限传播性质。
The integral N-S equation is regarded as a special diffusion equation and the pressure term, convective term are regarded as source terms.
将此N S方程看作一个特殊的扩散方程，将压力项与对流项看作是源项，得到一个积分方程。
Phase transition, enhanced diffusion and Y-Al alloy formation are studied using Y implantation with high current extracted from metal vapor vacuum arc (MEVVA) ion source.
利用金属蒸汽真空弧（MEVVA）源所产生的强束流离子注入铝研究了相变、增强扩散和钇铝合金的形成条件。
Uncertainties in the occurrence of the leakage, the intensity of leakage source, and the diffusion model in the process of the risk assessment of urban gas leakage are discussed.
讨论了燃气泄漏事故风险评价中泄漏的发生、泄漏源强度、扩散模式的不确定性问题。
The model of fractional anomalous diffusion caused by an instantaneous point source in fractal media is established.
建立了分形介质中分数阶瞬时点源反常守恒扩散模型。
Based on the actual environmental assessment, several methods on how to select parameters in the atmosphere diffusion model of point source are presented.
就实际环评工作中点源大气扩散模式计算参数选取的有关问题提出了一些新的看法。
The sets of diffusion equations are presented for reactive pollutant from a time -varied point source and secondary pollutant formed by the transformation.
建立了一个点源排出的活性污染物以及其在大气中化学转化形成的次生物扩散方程。
A evaluation index, named temperature Effectiveness Based Heat Source, is proposed. And the inverse problem of hybrid temperature diffusion is discussed.
提出了适用于评价控制区域内最大温度的评价指标——基于热源的温度效率，并探讨了复合温度扩散反问题。
This paper discusses the source of heat for spot welding and the theory of diffusion welding of brass and red copper.
探讨了点焊热量的来源和黄铜与紫铜的扩散焊机理。
The paper analyses the diffusion conditions of air boundary layers, the distribution and forecast of source air pollution and the current situation of air pollution.
分析了大气边界层扩散条件、大气污染源分布及预测、大气污染现状。
With the increasing of mining depth and exothermic function and diffusion progress of every kinds of heat source and so on, the heat damage of mines is becoming serious.
随着矿井开采深度的增加，由于各种热源的放热作用、扩散过程和其它原因，矿井热害日趋严重。
The technology innovation is the source of modern economic growth. The technology innovation diffusion is an inexhaustible driving force to prosper countries and regions.
技术创新是现代经济增长的源泉，技术创新扩散是国家和地区兴旺发达的不竭动力。
Diffusion capacities of hydrocarbons in different source rocks are very different, which should be responsible for the carbon isotopic fractionation.
烃类分子在不同类型烃源岩中的扩散度差别很大，可能是造成同位素分馏的主要原因。
An evaluation index, named temperature effectiveness based heat source, is proposed. And the inverse problem of hybrid temperature diffusion is discussed.
提出了适用于评价控制区域内最大温度的评价指标——基于热源的温度效率，并探讨了复合温度扩散反问题。
Under the condition of linear fog source and arbitrary wind direction, the diffusion rule of the fogging in narrow valley induced by hydraulics jump was studied by utilizing Gauss diffusion equation.
在雾源为连续线源和任意风向的条件下，利用高斯扩散方程，研究了水雾在峡谷内的扩散规律；
Method Based on point model regarding a single neuron as a point source, a discrete plat model of NO diffusion was established.
方法在NO扩散的点源模型基础上，构建了一个离散化神经元群的平板模型。
The purpose of this paper is to study the diffusion of point source in the convective clouds.
本文探讨了对流云中点源的扩散问题。
A mathematical model of fume diffusion in welding process was founded by considering welding arc as a spot source of generating fume and supplying the turbulent diffusion theory.
把焊接电弧作为一个发尘点源，应用大气湍流扩散理论，建立了焊接过程中烟尘扩散的数学模型。
The diffusion coefficient of the molecule increases with temperature increasing, which makes radon released from radium source increase and causes radon concentration to increase;
温度增加，分子的扩散系数随着增加，使镭源释放的氡量增加，导致氡浓度变大；
A diffusion theory model induced by a line source distribution is presented for oblique-incidence reflectometry.
本文提出一种采用线光源分布的扩散理论模型用于斜入射反射测量。
A technical concept, "reverse source quantity", based on artificial neural network, has been pointed out in order to carry out a numerical dynamic simulation on hydrocarbon diffusion process.
前言：提出实现烃类重气泄散态势的动态过程数值预测新构想———基于人工神经网络的“反求源”技术。
Technological innovation diffusion is the "cumulative" of technological innovation, and also the source of the growth of technological level and macro economic growth.
技术创新扩散是技术创新的“累积”效应，是宏观技术水平提高与国民经济增长的源泉。
The line source mode was also improved with increased computation speed and accuracy, thus realizing the use of PC for line source pollution diffusion modeling.
对线源模式进行了研究，提高了其计算速度及计算精度，解决了在普通微机上实现线源污染扩散的计算问题。
Puff trajectory model can deal with the temporal spatial variation of source parameters and meteorological elements, and can be used to simulate the diffusion of all kinds of scales and sources.
烟团轨迹模式能够处理源参数和气象要素的时空变化，适用于各种尺度和各类源的输送扩散模拟。
On the basis of the air pollution emission data, the contribution of each dust pollution source to the air environment quality in Anshan is analysed with ADMSair diffusion models.
以污染源排放数据为基础，应用adms -城市扩散模型模拟分析了鞍山市尘各污染源对空气环境质量的贡献。
On the basis of the air pollution emission data, the contribution of each dust pollution source to the air environment quality in Anshan is analysed with ADMSair diffusion models.
以污染源排放数据为基础，应用adms -城市扩散模型模拟分析了鞍山市尘各污染源对空气环境质量的贡献。
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