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。
Methods; To study the relationship between signal attenuation and temperature or time by the theory of diffusion movements on classical physics.
方法：用经典物理学的扩散理论探讨扩散运动引起的信号衰减与温度、时间的关系。
The formulas derived from the theory of diffusion current show that the so-called dilatancy-magnetic effect caused by ground water diffusion is also very small.
按照渗滤电流理论推出的公式表明，由地下水渗滤作用引起的所谓膨胀磁效应也是很小的。
Let me now try and introduce the Boltzmann equation because it basically gives us a much deeper appreciation than diffusion theory can in terms of what's going on.
我现在尝试介绍波尔兹曼方程，因为它给你们一个比扩散理论，更深刻的理解，在解释，发生的事情方面。
The atmosphere dispersion theory was used to analyze the influence ol calm wind and gravity action on the diffusion of dust particles .
利用大气扩散理论分析了静风和重力沉降两种作用对尘粒在大气中扩散的影响；
The concrete kinetics equations have been given on the basis of diffusion theory.
并根据扩散理论推导出了钢的内氧化动力学方程的具体表达式。
The research on diffusion loss of axial-flow fan's diffuser is carried out using theory calculation method and FLUENT software.
利用理论计算方法以及FLUENT软件对轴流通风机扩散筒的扩散损失进行了研究。
It is described that the innovatory technology of selective diffusion and study on surface passivation in theory for crystalline silicon solar cell.
本文的主要内容是介绍晶体硅太阳电池选择性扩散新工艺和表面钝化的理论研究。
The analysis of surface effect is based on defect reaction and diffusion theory, the study for surface effect will have good guidance to the improvement of electrical properties.
利用缺陷反应和扩散原理对表面层效应进行了初步分析，指出表面层效应的研究对改善和调节材料的电学性能具有重要的指导意义。
From the gas diffusion theory to study gas diffusion on the wet air, to Fick theory analysis, puts forward the influencing factors of gas diffusion.
从气体扩散理论出发，研究了湿空气下的天然气扩散，以菲克理论进行理论分析，重点提出了气体扩散的影响因素。
A modified free - volume diffusion model for binary aqueous mixtures in pervaporation was developed on the basis of free -volume diffusion theory.
在自由体积扩散理论的基础上，提出了渗透蒸发过程中二元水溶液在聚合物膜中扩散的修正自由体积模型。
The limitations of various typical flux-Limited diffusion theory and advantage of asymptotic diffusion theory with time absorption constant are analyzed and numerically compared.
对几种典型的限流扩散理论的局限性与含时间吸收项的渐近扩散理论的长处作了分析和数字计算比较。
The nucleation of ordered phase is simulated by microscopic diffusion equation and the assumption of classical nucleation theory is examined.
基于微观相场动力学理论建立的微扩散方程，以原子占位几率和序参数描述合金沉淀过程的原子簇聚和有序化。
An analysis of highly-enriched uranium-heavy water lattice was made recently using few-group diffusion theory and the equivalent diffusion of control rods and target assemblies.
利用少群扩散理论和控制棒与靶件的等效扩散处理方法进行了高浓铀-重水栅的分析计算。
The diffusion of carbon in hot working process of cladding sheet is analyzed based on diffusion theory and variations of carbon concentration in the high-speed steel matrix.
根据扩散理论和高速钢加热过程中基体的含碳量变化规律，对复合板材热加工过程中碳的迁移进行了讨论。
The experimental results show that the growth mechanism of the KTP crystal coincides with the linear law and the law of the parabola of surface or volume diffusion of the BCF atomic growth theory.
实验结果表明，KTP晶体生长机制与原子化的BCF生长理论的面扩散或体扩散的线性定律与抛物线定律相吻合。
Combined with the theory of viscosity, the relationship between diffusion coefficient and activation energy is expressed.
结合粘度理论建立了分子扩散系数与活化能之间的关系；
Based on the theory of jet diffusion the formula for predicting the position of dune in equilibrium scour pit are deduced theoretically.
并在此基础上，利用射流扩散理论导出平衡冲刷坑堆丘位置的预报公式。
Based on the theory of surface diffusion, a finite element method was developed to simulate shape evolutions of two-dimensional microcracks with surface perturbation.
根据表面扩散控制下物质迁移规律，建立有限单元法，对裂面形貌扰动下二维微裂纹演变过程进行数值模拟。
In this paper, the cause of speed of KT-150 diffusion pump are analyzed in the construction with using the theory of aerodynamics.
本文运用气体动力学的理论，重点从结构上分析了影响KT- 150型扩散泵的抽速因素。
The microscopic lattice kinetic model of aging process was build, using the coupling of the theory of microscopic elastic energy and microscopic diffusion equation.
将微观弹性应变能理论和微观扩散方程相耦合，建立起时效过程微观晶格动力学模型。
The new associating hard sphere chain equation combined the hard sphere chain model (HSC) of self-diffusion coefficient with the statistical associating fluid theory (SAFT).
将链式硬球模型自扩散系数方程与统计缔合流体理论(SAFT)相结合起来。
This paper studies the reflection theory for multi-component colloidal suspension systems and presents the method of deriving the rotational diffusion tensor.
研究多分量胶体悬浮系统的反射理论，给出用反射理论推导转动扩散张量的方法。
This paper is based on the theory of gas dynamics, by means of improving the first nozzle of diffusion pump in order to increase the pumping speed of diffusion pump are reported in the paper.
本文以气体动力学理论为基础，论述了如何通过改进扩散泵的第一级喷咀来提高扩散泵的抽气速率。
In this paper, the diffusion model and the theoretic calculation method of welding dust are given by gradient transportation theory and box model for outdoor atmospheric pollutants.
这里利用成熟的室外大气污染物扩散理论- 梯度输送理论和箱模式理论，提出焊接烟尘在室内的扩散模式和浓度分布的理论计算方法。
By using the molecular dynamics theory and diffusion limited aggregation model of film growth, the fractal phenomenon of the nodule nucleation was well explained.
用分子动力学和薄膜生长的扩散限制聚集模型，薄膜中结瘤微缺陷成核时的分形现象得到了很好的解释。
To explain the mechanism of the matrix effect, a theory of solute evaporation-lateral diffusion was proposed to inhibit the matrix effect, a new method of optimization was suggested.
为了解释这种干扰产生的机理，提出溶质挥发一横向扩散理论，为了抑制这种干扰的影响，设计了一种新的最佳化方法。
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。
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。
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