数学模型

And the numerical models and ideas provided in the paper can be used to solve relative problem.

同时所提供的数学模型和思路可以用来研究解决相关的问题。

According to the problems before-mentioned, a system dynamics is put forward to construct the model of anaerobic digestion system.

针对如上问题，研究引入系统动力学理论，采用SD建模方法构建了厌氧消化过程的数学模型。

A mathematical model of spiral bevel gear tooth surface was built by analyzing manufacture method and meshing theory.

通过分析锥齿轮的加工方法和齿轮啮合理论，建立了螺旋锥齿轮齿面数学模型。

Bilinear transformation was adopted to discrete the mathematic model of the whole simulation system. Considered that LabVIEW was a novel graphic computer language, the practical realization of mathematical model in LabVIEW was presented.

首先采用频率预曲折双线性变换法将控制系统的数学模型离散化；然后在LabVIEW中进行图形化编程，从而实现了基于虚拟仪器的汽轮机系统的仿真。

In this paper the mathematical model of high-efficiency continuous casting of billet is developed.

本文建立了方坯高效连铸二冷数学模型，提出了喷嘴有效喷淋系数和二冷有效比水量的概念。

The theory of image formation with binary optical element is developed in Chapter four to describe and predict the system's performance.

第四章详细讨论了二元光学元件三维光谱、空间成像原理，预计了成像系统特性，建立了数学模型。

The mathematical model of the binocular vision sensor is analyzed.

分析了双目视觉传感器的测量数学模型，提出了一种基于自由移动的一维靶标的双目视觉传感器标定方法。

Secondly, the steady-state productivity model for horizontal well in gas reservoir is established. On the basis of solving the model, this thesis elicits the binomial deliverability equation by which absolute open flow potential and inflow performance relationship can be got and we can forecast the production performance of horizontal well in gas reservoir. In the end, on the basis of the theoretical analysis, this thesis explores homologous nodal analysis program.

其次，在建立水平气井不稳定渗流数学模型并求得其解的基础上，推导出了考虑地层伤害及非达西渗流影响水平气井产能方程，通过该产能方程可求出水平气井的绝对无阻流量，绘制流入动态关系曲线来预测生产动态；最后，在理论分析的基础上建立了水平气井节点分析方法，并开发了相应的节点分析程序。

Then, the steady-state productivity model for horizontal well in gas reservoir is established. On the basis of solving the model, this thesis deduces the binomial deliverabiliry equation by which absolute open flow potential and inflow performance relationship can be gotten and we can forecast the production performance of horizontal well in gas reservoir.

其次，在建立水平气井稳定渗流的数学模型并求得其解的基础上，推导出了考虑地层伤害及非达西渗流影响水平气井二项式产能方程，通过该二项式产能方程可求出水平气井的绝对无阻流量，绘制流入动态关系曲线来预测生产动态。

BioGraph is a program to aid the biochronological correlation of species by constructing concurrent range zones using a mathematical model. The basic idea is to construct a discrete sequence of coexistence intervals of species.

这种软件通过利用数学模型建立同时发生的范围区域，来反映物种间的生物年代学的相互映射关系，其基本目的是建立物种间共生的不连续次序。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。