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Apply the rigid body movement of space and the matrix of loeation tronsformation of space to get the mathematic.

用空间刚体运动及空间位置变换矩阵导出自由刚体运动的教学描述方程。

On the base of the mathematic model of the PMSM, the reasons of the torque pulsation are analyzed. Then the validity of Iterative Learning Control in torque ripple minimization is expatiated. A whole simulation model is developed using SIMPOWER, and the effective of ILC in torque suppressing is proved. The scheme for hardware and software of integrated PMSM are demonstrated in the thesis.

本文在永磁同步电机数学模型的基础上，总结分析了永磁同步电机转矩脉动产生的原因，引入迭代学习控制抑制转矩脉动，利用SIMPOWER工具箱建立了永磁同步电机控制系统的仿真模型，对PMSM控制系统进行了仿真，仿真结果证明迭代学习控制能有效地抑制转矩脉动。

In view of the deficiency of traditional control methods and the distribution trait of riverhead and consumer, this paper presents a structure system controlled by network of water supply and sets up mathematic model.

根据我国供水现状和传统控制方法的缺陷以及水源与用户分布特点，提出了无线供水系统网络控制结构体系并建立了网络控制数学模型。

It was found that the predicted results of the mathematic model are good when the number of samples is 15 in calibration model and that in validation model is 6 (the total is 21) In that case, the value of the root mean square error of the estimation of calibration and the root mean square error of prediction of validation are very small(0.0115 and 0.0105 respectively) and almost the same.

结果发现，当校正集样品数为15检验集样品数为6（总样品数为21）时，使用外部检验法建立的数学模型预测结果较好，其校正集的均方根误差和检验集的预测均方根误差（分别为RMSEE和RMSEP）均较小（分别为0.0115和0.0105），而且很接近。

In chapter 5, the paper demonstrate the knowledge detection based on the experiment platform of rotating machinery, using the knowledge detection methods ofcombinational optimization based on mathematic statistics and associated rules.

在第5章介绍了基于数理统计和关联规则综合考虑的知识发现方法，仿真实现基于高速旋转实验平台的知识发现实例。

There is great difference between the actual systems and the mathematic models because of the uncertainties. So the engineering problem can not be solved satisfyingly if it is designed only based on the nominal system.

不确定性的存在使实际对象与所用数学模型之间有很大差别，如果仅仅根据标称系统来设计控制器，会使大量工程控制问题无法获得满意结果，甚至严重影响系统性能。

As the evolution process of the drainage channels on the scarp slope is concerned,the construction of their mathematic models and the visualization methods are discussed.

对断层崖上的沟谷演化过程，我们也对其数学模型的构造和可视化方法进行了探讨。

Aimed at the mathematic problem in the model of the pendulum oscillation,the paper introduces the study on the existence of odd-harmonic solutions to second order semi-linear differential equation which describes the model of the pendulum oscillation by using upper and lower solution method monotone iterative technique and the Schauder fixed point theorem respectively.

针对摆型振动模型中的数学问题，分别采用上下解方法、单调迭代法及Schauder不动点定理研究了摆型振动模型的二阶半线性微分方程奇调和解的存在性。

We present a mathematic expression of the changing wavelet model of the seismogram.

本文给出了地震记录变子波模型的一种近似数学表达式。

Application and development of platelet transpiration cooling technology in LRE;2. The Computation and Analysis of Heat Transfer of Platelet Cooled Microchannel on the High Temperature and High Pressure Gas Wall;3. Physical-mathematic model is built for the process of evaporation and combustion of the two interactive arbitrary size semisphere pearly transpiration droplets in platelet hole structure under micro-gravity condition.

针对微重力条件下层板孔隙结构中两个相邻任意尺寸半球形珠状发汗的蒸发与燃烧过程，建立了相应的数学物理模型；在双球坐标系中求解分子扩散传质偏微分方程，得到发汗液珠的分子扩散组分分布的解析解和扩散速率表达式；分析得到在常温、高温条件下蒸发以及燃烧状态下发汗液珠的相互作用因子式，计算了相互作用的发汗液珠在不同条件下的发汗蒸发量以及变化趋势。

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。