In this paper, the finite difference method is mainly used in solving the model equations of smoke.
在求解烟雾模型方程时，本文主要采用有限差分法。
Model equations of diffusion electric currents and liquid rates were established theoretically and solved analytically.
理论推导了扩散电流与液选的模型方程，得到了解析解。
Using the method of augmented matrix, the model equations are changed from nonhomogeneous form to homogeneous form, to be solved.
采用增广矩阵的方法将非齐次的模型方程化为齐次的形式再求解。
Mathematical analyses of the model equations with regard to invariance of non-negativity, nature of equilibria and global stability are analyzed.
分析了系统的非负不变性、边界平衡点性质及全局渐近稳定性。
Modelling and optimization based on rigorous mathematical model equations have significantly become a major technology area in the process industries.
在流程工业领域，基于严格机理模型的开放式方程建模与优化已成为国际上公认的主流技术方向。
Model equations for three dimensional calculation are given. Special treatment of boundary conditions at the entrance and the inclined wall is carried out.
给出了三维流场计算的模型方程，对倾斜壁面及入口的边界条件作了特殊处理。
The model equations are computed by means of a finite-difference method. The three dimensions of temperature fields for EED are gained and the results are discussed.
用有限差分法对该模型方程进行求解，得出了桥丝式电火工品的三维温度场分布，并对结果进行了分析。
Model CR118 has a Fraction to Decimal Conversion Chart and Trigonometric Ratio Equations etched on the front side.
CR118模型的正面刻有一个分数到十进制的转换图和三角比公式。
The research team uses the model to run millions of numbers -- atmospheric conditions like wind speed, temperature, and moisture -- through a series of equations.
该研究小组使用此模型处理一系列的方程式，运算数百万的数据包括风速、温度、湿度等大气状况。
The GEOS-5 model USES mathematical equations that represent physical processes-such as precipitation and cloud processes-to calculate what the atmosphere will do.
GEOS - 5运用描述物理过程的数学方程(比如沉积过程和成云过程)来模拟大气的变化。
Build a system dynamics model of the project including causal loop diagrams and governing equations.
建立该项目的系统动态模型，包括因果环路图和控制方程。
The dynamical property of this model is described by dual differential equations and it can find out several stable equilibrium points from any initial point in the state space.
该模型的动态特性可由对偶微分方程描述，它具有从状态空间内任一初始点找出多个稳定平衡点的能力。
The mathematical model also includes equations for computer-assisted management systems transient characteristics.
还包括数学模型方程的计算机辅助管理系统的瞬态特性。
The parameterized dynamic model of the impact compactor is made based on the classical Hamilton's canonical equations.
运用经典的哈密顿正则方程，建立了冲击式压实机的参数化动力学模型。
The model is based on the semiconductor laser rate equations and the structure of the VCSEL chip, and every element in the circuit is represented.
等效电路的提出是基于半导体激光器速率方程以及VCSEL芯片结构，电路中各元件都有严格的物理意义。
A general dynamic model and differential equations for an unsymmetrical projectile traveling in a flexible, increasing twist rifled bore gun tube are developed.
建立了非对称弹丸在挠性渐速膛线身管内的弹丸一般运动动力学模型和运动微分方程组。
The calculation equations of distributed force model are derived for actuators bonded on structure by single-sided and double-sided.
分别导出了单面粘贴驱动器和双面粘贴驱动器时的分布力模型的计算公式。
Based on the mass conservation law, the energy conservation law and some empirical equations, the dynamic model is built.
根据基本的质量守恒定律、能量守恒定律以及一些经验公式等建立了系统的动态数学模型。
Fatigue damage estimation of the tendons was made using fracture mechanics approach, establishing the fracture crack growth rate model and limit state equations for failure modes.
疲劳寿命的计算采用断裂力学方法，建立疲劳裂纹扩展模型和失效模式的极限状态方程。
The numerical model of the linear optical amplifier (LOA) is built based on the rate equations. The gain clamping characteristics of LOA are simulated.
基于速率方程建立了线性光放大器(loa)的数值模型，模拟了线性光放大器的增益钳制特性。
To reduce the horizontal vibrations of high-speed elevator, a 4DOF dynamic model of elevator was developed, and the differential equations and the state space model were also given.
为了降低高速电梯的水平振动，建立了4自由度的电梯轿厢水平振动主动控制的动力学模型，给出了微分方程，建立了状态空间模型；
We have already stated that our main concern will be the study of systems for which linear, time-invariant differential equations provide a useful model.
前已指出：我们主要关心的是用线性、时不变微分方程作为实用的模型系统。
The dynamic and kinematic model, control and guidance equations of underwater vehicle are discussed, which tasks are divided in details, according to it's characteristics.
然后针对水下航行器制导系统多任务特点，讨论了水下航行器制导系统的动力学、运动学模型及控制、导引方程，并对其任务进行详细划分。
The model includes three parts: equations of the motion for the parachute-store system, equations of the motion for the wake, equations of the momentum transfer between parachute and wake.
建立的尾流再附动力学模型包括：伞系统运动方程、尾流运动方程、伞衣-尾流动量交换方程。
A mathematic model of using trajectory equations for firing data is presented.
给出了一种利用弹道方程决定射击诸元的数学模型。
A mathematic model of using trajectory equations for firing data is presented.
给出了一种利用弹道方程决定射击诸元的数学模型。
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