微分模型没有模型误差，微分方程的求解存在舍入误差。
The differential model not has model error. Solving the differential equation has rounding error.
这是一个概率问题，但用微分方程解决，故称概率微分模型。
This is a probability problem, called it probability differential model because it's solved by differential equation.
由偏微分模型可获得与常微分模型相比更为精确的预测值，并且能够获得分年龄人口预估。
We can get more accurate predicted population from the PDE model than the ode model and age-specific predicted population.
通用模型控制是一种有效的非线性控制方法，但该方法的应用条件是过程一阶微分模型必须要有显式解。
Common model control (CMC) is an effective nonlinear control method, but its application condition requests explicit solution for the first order differential model of the process.
针对热塑性聚合物在锥形量热仪中燃烧测试时的熔融行为，提出了有限厚度的聚合物固体一维不稳态燃烧微分模型。
Based on the study of melting behavior of thermoplastic polymers tested in the cone calorimeter, a differential numerical model for one-dimensional unsteady burning of polymers was put forward.
第二章以季风、河流流向等自然条件和生物生活习性为背景，建立食饵单向扩散的捕食-被捕食系统的常微分模型。
In the second part, a predator-prey model of ordinary differential with one-way diffusion is studied considering the monsoon, river flows, other natural conditions and living habits as background.
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 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.
本文利用微分方程稳定性理论，研究了城市交通容量中两种交通方式的竞争关系，它们适合于根舍模型；
Using the theory for differential equation stability, this paper investigates a struggle relationship between two traffic modes in city traffic volume , and shows they suit Gause' s 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。
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.
解决了微分方程组的刚性问题，提出了混合裂解反应动力学模型。
The stiffness problem of differential equation set has been solved and a kinetic model of simultaneous pyrolysis reaction has been proposed.
并对在该模型下建立的动力矩阵用动力凝聚法进行简化，推导了相应的振动微分方程。
Through dynamic force condensing, the dynamic matrix of mega-frame is simplified, and corresponding oscillatory differential equation is obtained.
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。
A general dynamic model and differential equations for an unsymmetrical projectile traveling in a flexible, increasing twist rifled bore gun tube are developed.
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；
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.
该理论以电荷守恒原理代替电流连续性原理，建立了电荷累积模型的微分方程。
By substituting the principle of current continuity with charge conservation, the differential equation of charge accumulation model is built.
该方法无须迭代即可直接从微分方程辨识出模型阶次和参数。
The model's order and parameters are estimated from the differential equation directly without iterations.
本文通过建立一个描述利益群体相互作用的微分动力模型，讨论了其均衡解的存在和稳定性条件。
Through building a differential dynamic model which describes interaction among interest-group, this paper discuss the conditions of existence and stability of equilibrium of the model.
分析了传染病的传播扩散特点，建立了传染病传播扩散的微分方程模型。
The characteristics of epidemic disease were analyzed and a differential equation model for epidemic disease spreading was set.
本文在分析TCP流量控制微分方程模型的基础上，提出一种新的队列波动分析方法。
Basing on analysis of TCP flow control stochastic differential equation model, this paper presents a new method to analysis queue fluctuation.
许多环境数学模型是用常微分方程表示的，它只考虑了时间对种群密度的影响。
Many environment mathematical models are ordinary differential equations where time is considered only as its effect on population density.
本文采用线性回归分析结合微分方程模型，讨论了商场各项卫生指标相互依赖的关系。
In this article, we discuss the interrelations between the various hygienic evaluation targets in market by means of linear regression analysis and differential equation model.
文中给出了这一非线性振动模型的微分方程，并用奇异摄动法求得了渐近解。
This paper also gives the differential equation of the nonlinear vibration model, and obtains its asymptotic solution by means of singular perturbation methods.
该文探讨和介绍了地下水运动中几类常用的随机微分方程模型与求解方法。
This paper discusses and introduces several kinds of commonly used model of stochastic differential equation and the method of solution in the groundwater movement.
根据微分误差模型，建立了机床刚度矩阵，得出了机床位置刚度和转动刚度的分布情况，着重讨论了铰链刚度对机床刚度的影响。
The differential error model was used to develop the machine tool stiffness matrix. The solution gave contour plots of the position stiffness and the rotation stiffness.
针对传统扩散模型中的边界模糊问题，提出一种基于非局部信息的非线性偏微分方程去噪模型。
A nonlinear partial differential equation model based on nonlocal information was proposed to remove noise and preserve the edges.
针对类似乙肝的一类流行病的传播机制，建立较好的常微分动力模型。
Aiming at the spread mechanism of a class of epidemic diseases similar to hepatitis b, an ordinary differential dynamical model is established.
采用偏微分数值模型，使用热解界面预估循环迭代的方法，对存在可变残留层材料的热解过程进行了详细研究。
The paper does an in-depth research on the numerical model of pyrolysis process of the materials with volatile residual layer by using pre-evaluation iteration method.
首先建立了弹性支承变质量转子系统的力学模型和运动微分方程；
First of all, the mathematical model of the flexibly supported rotor with wriable mass is built up.
介绍了一种滚动基础隔震系统，并由此建立了此隔震系统的计算模型和运动微分方程。
A rolling base isolation system is introduced and the computing model and dynamic equations of the isolation system are established.
介绍了一种滚动基础隔震系统，并由此建立了此隔震系统的计算模型和运动微分方程。
A rolling base isolation system is introduced and the computing model and dynamic equations of the isolation system are established.
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