数学模型

In this paper, the horizontal 2-D numerical model is applied to model the rule of discharge variation at the entrance of the flood diversion area.

本文将通过平面二维水流数学模型来研究分蓄洪区口门的流量变化规律。

Based on fluid network theory ,the mathematical model of fluid pulsation attenuator was established.

采用流体网络理论方法对流体网络的特点和基本参数法进行分析，研究并建立一种流体脉动衰减器的数学模型，并通过脉动衰减器的阻抗及系统插入损失，对其性能进行研究。

Equation of Van der Pol is the mathematical model of an audion circuit.

VanderPol方程是三极管电路的数学模型。

Analyzing the relations between the Zernike polynomials coefficient and the wavefront difference and obtaining the Seidel wavefront error expressed by Zernike coefficient using autocollimation interforerence methods.

数学模型中各个参数的数据获取。确定的光学系统将唯一地确定一个灵敏度矩阵，它反映了补偿器单位位移或者单位转动其对光学系统的像差贡献。

Based on these, a general mathematical model for the polar autocorrelation function is set up and the theoretical basis of the polar correlation method is presented.

在此基础上，建立了一般的极性相关函数的数学模型。从而论证了极性相关法的理论依据，拓宽了极性相关法的适用范围。

Quantum Automata, a kind of mathematical model of quantum computation, has become an active research area gradually.

量子计算的一种数学模型——量子自动机的研究也成为一个日益活跃的研究领域。

The tax payment appraised the system the appraisal method, mainly is through the use related mathematical model, establishes the tax payment appraisal target system and the target peak value system, carries on the automatic computation analysis to the data message, by discovers deviation to surpass prearranges the standard the questionable point factor, automatically screens the taxpayer by the computer which has the questionable point.

纳税评估系统的评估方法，主要是通过利用相关数学模型，建立纳税评估指标体系和指标峰值体系，对数据信息进行自动计算分析，以找出偏离度超出预定标准的疑点因素，由计算机自动筛选出有疑点的纳税人。

In recent 20 years, System identification as one of the important ways to establish mathematical model of the controlled object has been developed rapidly and become one of the automatic control theory, a very active and important branch.

系统辨识作为建立被控对象数学模型的重要途径之一，近20年来获得了迅速的发展，已成为自动控制理论的一个十分活跃而又重要的分支。

This paper mainly discusses the characters of the text structure-based automatic abstracting and the methods to realize it.

然后着重论述了基于文献结构的自动文摘的特点和实现方法，并对已有的数学模型进行评价，提出了作者的一些改进想法。

It firstly gave the software and hardware environment, and then described its design plan and strategy detailedly on the base of analyzing the problems of today's automobilism simulator. Meanwhile, it builded the mathematics model, and gave the examining plan on collision of automobile. Then it elaborated systemly its achievement and basic algorithm of roaming system. Finally, it summed up the full text, and put forward the next prospect.

首先给出了该仿真系统实现的软硬件环境，然后在分析了当前驾驶模拟器仿真系统所存在的问题的基础上，详尽地描述了本系统的设计方案与实现策略，同时建立了仿真车辆实体的数学模型，并就车辆的碰撞行为给出了检测方案，接着，论文还就漫游系统的实现及其基础算法进行了系统地阐述，并就本仿真系统的特效处理给出CG语言的实现，最后，总结全文并给出了下一步工作的展望。

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。