在此基础上简化模型，推导出了高差混油浓度分布的基本方程。
So the model was simplified without consideration of the viscosity variation, and an equation for contamination concentration distribution caused by elevation difference was developed.
运用线性偏微分方程的可迭加性质所求得的碳浓度分布函数能够描述多段法渗碳过程的物理本质。
The carbon concentration distribution function derived from partial linear differential equation by applying the feasibility of repeat adding can describe the innate character of multi stage ca...
利用含有受激布里渊散射效应(SBS)的传输方程，研究了透明传输和最佳掺杂浓度下，受激布里渊散射效应对分布式掺铒光纤放大器(d - EDFA)的各种特性的影响。
In this paper, we report the study of the effect of SBS on various properties of the distributing erbium doped fiber amplifier (d EDFA) using a convective equation.
由CO、co_2加氢合成甲醇的反应是一个复合反应体系，其催化剂颗粒内的浓度分布的表征方程为二阶常微分方程组。
The hydrogenation reaction of co and CO2 to synthesize methanol is a multiple reaction system. The distributions of concentrations are described by second order ordinary differential equations.
通过分析平板膜超滤分离过程，描述了超滤过程动量传递和质量传递的微分方程，求解方程得到速度分布和浓度分布曲线。
By analyzing the ultrafiltration process of flat membrane, differential equations of momentum transfer and mass transfer describing the process are established.
在圆柱状催化剂内的浓度分布的表征方程为二阶偏微分方程组。
The mathematical model describing the profiles of concentration in the cylindrical catalyst is the nonlinear partial differential equations of second order.
在圆柱状催化剂内的浓度分布的表征方程为二阶偏微分方程组。
The mathematical model describing the profiles of concentration in the cylindrical catalyst is the nonlinear partial differential equations of second order.
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