数学分析

This text utilizes the stability theory of differential equation, establishes the mathematical model of praying on the relation among the living beings, then according to the characteristic of differential equation group set up, through analyze to its equalization point,discuss the rail line distribution situation and overall stability, studies the dynamic change situation of every species during sufficient long time slot.

摘要本文利用微分方程稳定性理论，建立生物间捕食关系的数学模型，然后根据建立的微分方程组的特性，通过对其平衡点分析，轨线分布情况以及全局稳定性的讨论，研究出各物种在充分长时间段中的动态变化情况。

The stability of AC-excited generator is studied on the detail analysis of the math equation and basic characteristic of it.

本文在详细分析交流励磁发电机的数学模型和基本特性的基础上，对其稳定机理进行了深入的研究，得到了其在不同转差下静态稳定性的规律及具有更高的暂态稳定性的理论依据，进行了仿真和实验验证。

Numerical simulating of the regulation was made. The mathematics model of water movement and the experience model of water absorbing were constructed for tomato, basing on the study on the characteristic of its root distribution. Movement of soil water was simulated, and the front of nitrogen was forecasted, using the piston flow model.

根据温室滴灌西红柿的实际情况，在对西红柿根系分布特征的田间试验分析的基础上，建立了滴灌西红柿水分运动数学模型和西红柿根系吸水经验模型，对田间土壤水分动态进行了模拟，运用简化的氮素运移活塞模型对土壤中氮素溶质锋面进行了预测。

In this paper, on the basis on analyzing of asynchronous motor, DTC principle and torque ripple characteristic, the vector subdivision method is studied particularly, and at the same time, an improved optimized switch stable method is proposed.

在分析了异步电机数学模型、直接转矩控制原理以及转矩脉动特性的基础上，对基于空间电压矢量的矢量细分法进行了详细的研究，并在此基础上提出了一种改进优化开关表法。

The change of temperature and the characteristics of the urban heat island effect were analyzed with climatology and statistic methods based on annual meteorological data from 1961 to 2000 at 17 stations in Shijiazhuang area.

选用石家庄地区17个气象观测站40年(1961—2000年)的平均气温资料，应用气候学、气候统计中的数学方法，对该地区的气温变化状况和城市热岛效应特征进行了分析。

This paper is aimed to study women's body shape and the structures of women's close-fitting underwear, besides, to explore the technical routes and methods of realizing the virtual design of underwear patterns.

在抽样调查的基础上分析了女性体型的身高差异和地域差异，并建立了与内衣结构设计密切相关的女性胸部数学模型。

This pa-per is aimed to study women's body shape and the structures of women's close-fitting underwear, besides, to explore the technical routes and methods of realizing the virtual design of underwear patterns.

在抽样调查的基础上分析了女性体型的身高差异和地域差异，并建立了与内衣结构设计密切相关的女性胸部数学模型。

I_for every bounded closed domain in lane.Then we in- troduce the conception of F-homeomorphism for any two pictures in plane,and apply this conception to image recogni- tion.

从数学方法上看，现有图形识别方法多半是采用分析和概率相结合的方法，而描述图形本质特征的拓扑不变量却难以有效应用。

With the views of the actual situations of industry of province, this article studies the theory of economy transformation on local coal resources, analyzes and compares some successful methods of the transformation in coal industry , And at first by means of the mathematics model, researches the development of economy transformation of Shanxi cities with coal resources and its major measures.

本文结合山西省的实际情况，通过对区域煤炭经济转型的理论研究，分析比较世界煤炭产业转型较为成功地区的一些具体做法，并通过简单的经济数学优化模型，初步探讨出山西煤炭资源型城市经济转型的发展方向和应采取的主要保障措施。

A set of physical model tests were made here and a calculation method considering resistance coefficient of pile group was applied in the numerical simulation of piled wharf through analysis and research.

因此，本研究采用局部物理模型试验，通过分析研究，提出在桩式码头数学模型计算中，考虑阻力系数的计算方法。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。