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化学方程
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  chemical equation
     Professor Green of the Department of Chemical Engineering under the Massachusetts Institute of Technology has proposed an adaptive chemistry (AdapChem) concept, under which by the use of a consistent splitting method conservation equations can be divided into two organic parts, namely, a chemical equation and a flow equation.
     麻省理工学院化工系的Green教授提出了自适应化学理论AdapChem的概念 ,它采用相容分割法将守恒方程划分为化学方程和流动方程两个有机的部分。
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  “化学方程”译为未确定词的双语例句
     Particle swarm optimization algorithm and its application in extracting roots of complicated chemical equations
     微粒群优化算法及其在复杂化学方程求根中的应用
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     A gas phase chemical reaction mechanism for 18 species is used, which includes the important chemical reaction equations related to oxidation of SO2. The heterogeneous oxidation processes of SO2 by H2O2, O3 and metal catalys in the aqueous phase chemistry are considered.
     气相化学反应有18种化学物质,包含了二氧化硫气相氧化的主要化学方程.
短句来源
     Highly effective and accurate solving process and computing method on such aspects as finding the solution to the concentration and chemical equations, the calculations of interfacial tension, viscosity and relative permeability have been innovated. Thus the new numerical simulation software on chemical flooding has been developed. This software has many advantages in data input, solving process, capacity on field application and commercialization, and it has had good application effect.
     针对引进的UTCHEM软件存在的问题、缺陷和错误进行了改进和完善 ,并在浓度方程、化学方程的求解及界面张力、粘度、相对渗透率的计算等方面提出了新的高效、高精度的解法和计算方法 ,形成了新的化学驱数值模拟软件 ,该软件在数据输入、解法、矿场应用能力和商品化程度等方面具有先进性 ,应用效果良好
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     This paper introduces a basic physicochemical equation of thermodynamics and kinetics at high temperature during welding. A mathematical model was established based on above mentionel equation and the computer program was compiled using Visual Basic. The formula of covered electrode was forecasted on the basis of the composition of weld line after the expected or predicted joint properties and welding parameters were given.
     介绍了焊接过程高温时的热力学和动力学基本物理—化学方程 ,并以此方程建立了数学模型 ,采用计算机VisualBasic编程 ,在给定的所期望接头性能和焊接参数后 ,基于焊缝成分预测焊条的配方。
短句来源
     The solution scheme is the consistent splitting technique which splitting the conservation equations into two separate intergration, one chemical intergration and one fluid dynamics intergration.
     它采用相容分割法将守恒方程划分为化学方程和流动方程两个有机的部分。
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  相似匹配句对
     The second, the solution of chemical multi-species equation.
     第二,化学组分方程的求解。
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     Program Design for the Regression of Chemical Kinetic Experimental Differential Equation
     化学动力学经验方程回归的程序设计
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     Electroless Copper Plating
     化学镀铜
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     The Chemistry of Retardation of Combustion
     阻燃化学
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     The equation is an extensiveSchrodinger one.
     dinger方程
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  chemical equation
The measurand is described by a chemical equation that identifies the entity for which an activity is being monitored.
      
In instances where impure materials are used or the chemical equation defining the activity is unknown, the evaluated parameter should be designated as f' to denote its empirical nature.
      
The balancing of chemical equation is carried out, by formulating a reaction matrix and the latter is used in a matrix equation.
      
The overall chemical equation representing the thermal decomposition of potassium permanganate up to ≈300°C is given approximately by: 10 KMnO4→2.65 K2MnO4+[2.35 K2O·7.35·MnO2.05]+6O2, the bracketed material being δ-MnO2.
      
Brain glutamate decraboxylase (EC 4.1.1.15) catalyzes the biosynthesis of the postulated neurotransmitterγ-aminobutyric acid according to the following chemical equation:L-glutamate →γ-aminobutyric acid+CO2.
      
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In the present study, a Eulerian regional acid deposition model is designed. The main atmospheric processes, including transport, diffusion, chemical transformation, dry and wet deposition, are incorporated. A gas phase chemical reaction mechanism for 18 species is used, which includes the important chemical reaction equations related to oxidation of SO2. The heterogeneous oxidation processes of SO2 by H2O2, O3 and metal catalys in the aqueous phase chemistry are considered.In order to test the model,eight cases...

In the present study, a Eulerian regional acid deposition model is designed. The main atmospheric processes, including transport, diffusion, chemical transformation, dry and wet deposition, are incorporated. A gas phase chemical reaction mechanism for 18 species is used, which includes the important chemical reaction equations related to oxidation of SO2. The heterogeneous oxidation processes of SO2 by H2O2, O3 and metal catalys in the aqueous phase chemistry are considered.In order to test the model,eight cases of precipitation over sichuan - Guizhou area are used.The model subdivides this area into 35×35 grids in horizontal and 15 levels in vertical.The results indicate that the distributions of concentrations for SO2 , SO4 and pH value predicted by the numerical simulations are in agreement with those obtained from the observational data.

本文提出一个区域的欧拉酸雨模式,包括了大气中污染物质的输送、扩散、非线性化学转化和干湿沉降等物理和化学过程.气相化学反应有18种化学物质,包含了二氧化硫气相氧化的主要化学方程.液相氧化反应包含了H_2O_2,O_3及催化剂对二氧化硫的氧化过程.水平方向有35×35个网格点,垂直方向分15层.选用了四川、贵州地区1988年的8次降水过程对模式作了检验,结果证明模式能较好地模拟这个地区的二氧化硫、硫酸根及降水pH的分布状况.

in this paper, the dynamic flow systems and transport of contaminants in karstic aquifers are presented. Some conclusions are reached from the analysis of physical and chemical processes involving aqueous systems containing certain contaminants, Pertinent mathematical and chemical equations for these complicated processes are discussed. Contaminant transport in Karstic aquifers can be mathematically expressed by the basic equations evaluated primarily for the flow in porous, highly permeable aquifers. The effects...

in this paper, the dynamic flow systems and transport of contaminants in karstic aquifers are presented. Some conclusions are reached from the analysis of physical and chemical processes involving aqueous systems containing certain contaminants, Pertinent mathematical and chemical equations for these complicated processes are discussed. Contaminant transport in Karstic aquifers can be mathematically expressed by the basic equations evaluated primarily for the flow in porous, highly permeable aquifers. The effects of advection,hydrodynamic dispersion, and dilution are discussed as physical processes. To sumup, physical and chemical mechanisms that govern contaminant movement and ground water flow through fractured media are proposed as the basis of anapproximate approach of contaminant transport through karstified carbonate rocks.

介绍水蚀性岩层中的渗流及金属和无机污染物迁移问题.通过对含有污染物的某些蓄水系统中的物理和化学过程的分析得出一些结论,并对这些过程不仅作了详细的说明,而且采用恰当的数学和化学方程加以讨论.在水蚀性岩层中无机污染物的迁移用高渗透率多孔介质中流动的基本方程近似地描述,而对流、水动力学扩散、稀释等影响可作为物理过程来阐述.总的说来,控制裂隙岩体中地下水流动与污染物输运的物理和化学机理是建立水蚀性岩层中无机污染物输运近似方法的基础.

The first-order reaction dynamic process was simulated in this paper by thenonlinear least squares method. The constant of reaction velocity can be obtained without theCoo, the concentration of reaction agent at infinite reaction time. The comparison betweenthe linear and the nonlinear least squares methods shows that a more accurate result can beobtained by using the nonlinear least squares method.

用非线性最小二乘法精确模拟一级动力学过程,从而求得在没有C∞(反应时间为无限大时反应物浓度)条件下,求得一级反应速率常数。用非线性最小二乘法和线性最小二乘法处理数据,结果表明,非线性最小二乘法的残差平方和较线性最小二乘法为小。本文还指出:非线性最小二乘法同样适用于物理化学方程中含有非线性参数之求算。

 
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