数学基础

By soluting the dynamic mathematical model, the transfer functions were obtained. The influence laws of heat storage and working medium property to dynamic characteristics were obtained.

在对锅炉蒸发受热面简化假定的基础上，建立了亚临界压力下的动态数学模型，对该数学模型进行求解，推导出了蒸发受热面的传递函数。

Based on mastering traditional classification model of thematic cartography elements, we apply fuzzying mathematics, statistics, information theory and so forth, to cartographical data processing model, perfect each model of making sure of grading circumscription, and build an algorithm how to automatically fix on the number of grading.

本文在掌握了传统的专题制图要素分级模型的基础上，把模糊数学、统计分析及信息论等近代数学方法运用到了地图数据处理模型中来，提出并完善了各个分级界限的确定模型，并建立了如何自动确定分级数的算法模型。

So the respiratory physiology a hydrodynamics is the base of studying how gas convect and diffuse in the hi In this paper, we introduce the physiological structure and the process of | convection and diffusion in the lung. After analyzing some kinds mathematical model, we have got a digital model through simplifying l Weible model.

本文介绍了肺体的生理结构以及气体在肺内的传输和扩散过程，通过对现有几种数学模型的分析后，在Weible肺解剖模型的基础上简化得到肺的一维喇叭口数学模型，把气体在三维空间传输和扩散问题转化为一维问题。

The discrete mathematical models of the roundness and cylindricity EST are established; the mathematical models of the generating line straightness, axis straightness, coaxality, circular run—out and total run—out error of the revolution workpiece are put forward and established first based on the EST; the method about how to sample and to process sampling data are given when these models are applied to measure workpleces.

其主要内容是：针对长期以来国内对回转误差运动的有关定义的争论，对回转误差运动的本质进行了讨论，进一步明确了静心与静轴，动心与动轴的概念，并对此进行了数学推导，给出了相应的数学模型；统一了&平动说&和&瞬心说&关于回转轴线的定义，指出了两种学说各自的力学基础和它们的一致性。

This paper, basing on the software system, analyzes the quenching process at point of diathermanous subject view; introduces the instrument of measurement and the experiment principle; concretely analyses the mathematic models and processing method of the data-processing system, which is the theoretic groundwork for programming; describes the makeup of the software and how to design and actualize it.

论文部分基于作者所开发的淬火介质冷却性能测试软件系统，从传热学的角度分析了淬火冷却过程；介绍了淬火冷却性能测试设备及原理；重点分析了数据处理系统部分数学模型的建立及相应的数学处理方法，这部分是系统编程的理论基础；并概述了系统的构成，软件的设计及实现。

The essay also treats significance of this method in maths of high school education. It puts forward teaching strategy about how to emphasize maths transformation method, that is to place emphasis on basic knowledge, perfect knowledge structure, develop the transformation method, and improve the ability of transformation. We also base on our text books, and epurate and summarize the basic teaching strategy in our work.

接下来，论述了化归思想方法在中学数学教学中的意义，最后结合个人教学实践，提出了加强数学化归思想方法的教学策略，即夯实基础知识，完善知识结构；培养化归意识，提高转化能力；掌握化归的一般方法；强化通性通法教学；深入教材，反复提炼与总结等基本教学策略。

On the thinking method of solving the explorative problems

数学是基础科学的基础，数学中充盈着丰富的思想方法。

On the basis of engine idiocratic mathematical model, using the origin underway accelerate time and the oil consumption at the cycle of multi-working conditions as the objective functions of the power performance and the economy performance respectively, and then transform it to a single objective function by using the linear adding.

在建立发动机特性数学模型的基础上，以原地起步连续换档加速时间和多工况循环使用油耗作为衡量动力性和燃油经济的2个分目标，采用线性加权组合的方法将其转换成单一目标函数，建立了汽车动力传动系优化数学模型，利用惩罚函数法对此模型进行了优化，实例计算表明，应用该方法对汽车动力传动系进行优化匹配分析时，整车综合性能均有显著改善。

Based on traditional wood fiber processing way at home and abroad, this paper draws up mathematical description theory of wood fiber, finishes the mathematical description theory of single wood fiber, sum up the reason of low density of wood fiber at microcosmos state, completed the laboratory study on Micron Flake Fiber High Strength Board, set up the forming methodology of this kind of wood-based panel.

本文在总结国内外传统法木纤维加工的基础上提出了木纤维数学描述理论，进行了单个木纤维细胞的数学描述，总结了现在木纤维强度低的微观原因，完成了微米长薄片木纤维高强度人造板的实验室研究，创立了该板种的形成方法学，所提出的MFB形成理论体系和加工方式，是利用木材微纳米技术在人造板加工业中开创出的一片新研究领域，提出了微米纤维细胞劈裂的条件。

Based on the dynamical system of a tuberculosis spread m odel, the dynamical behavior of a tuberculosis spread model with constant immigr ation was discussed, and the local and global asymptotic stability of the endemi c equilibrium on this model is studied by using Hurwitz criterion and multiple m atrix theory. Sufficient conditions for the local and global asymptotically stab ility of the endemic equilibrium on this model are obtained.

在结核病传播的数学模型的动力学系统基础上，利用 Hurwitz 判据和复合矩阵理论，讨论了具有常数移入的结核病传播的数学模型的动力学性质，研究了具有常数移入的结核病模型的地方病平衡点的局部和全局渐近稳定性，得到了具有常数移入的结核病模型的地方病平衡点是局部和全局渐近稳定的充分条件。

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。