The theory of improving properties from substitution and the structure of solid solution before and after substitution should be studied further, although large tolerance factor and electronegativity difference have important effects on the improving properties.

This paper first introduces the crystal structure and theory of cations substitution of magnetic garnets. The preparation methods and magneto-optical characteristics of Bi: YIG and Ce: YIG thin films are emphatically discussed.

首先介绍了磁性石榴石的晶体结构和元素替代理论，然后重点介绍了Bi：YIG与Ce：YIG薄膜的制备方法和磁光特性。

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The second chapter is about the classic theory of currency substitution and monetary internationalization.

第二章对经典的货币替代和货币国际化理论进行回顾。

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Apply the theory of variable structure system to design an excitation controller.

根据变结构控制理论设计了励磁系统控制器。

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Comment on the Product market Theory of Capital Structure

资本结构的产品市场竞争理论述评

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The Study on the Approaches to the Theory of Dissipation Structure

耗散结构理论中的方法探讨

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Excitation control of synchronous machine using theory of variable structure systems

发电机励磁变结构控制

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Advanced Analysis Theory of Steel Structure in Three Dimension Space and Its Application

三维空间钢结构高级分析理论与应用

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A Study in the Dynamic Designing Theory of Organizational Structure

对企业组织结构动态设计理论的探讨

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Analysis Theory of Membrane Structure by Curved Surface Finite Element Method

用曲面有限单元建立的膜结构分析理论

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The basic theory of Steel Structure and numerical simulation;

⑵钢结构基本理论与数值模拟；

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According to the production reality of oilfield, 9 kinds of load situations are set up to simulate the mechanics action. After that, it calculates the wind vibration coefficients and pulsating equivalent wind-load at four parts of derrick by theory of structure random vibration.

根据油田生产实际，建立了9种模拟井架结构力学行为的载荷工况，运用结构随机振动理论计算了四段井架结构的风振系数和等效脉动风载荷。

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This paper constructs a joint optimal model between the stiffness optimization of frame structure and controlling forces and stiffness by combining code for seismic design of buildings with the theory of structure control. The optimal distribution of stiffness is given correspondingly.

本文结合《建筑抗震设计规范》及结构控制理论，建立起框架结构刚度优化模型及控制力与刚度的联合优化模型，最后得到刚度的优化分布规律。

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Figures all-embracing moment of lining structure on different water pressure are given, taking pressure of suddenly effluent water as move load act on lining by applying the theory of structure mechanics moment influence line.

运用结构力学的弯矩影响线理论，把突水压力作为衬砌结构上的移动荷载，给出不同突水压力下衬砌结构的弯矩包络图。

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Based on dynamics theory of structure and the equations of dynamics characteristics of the structure, the effects of different areas of the brace, numbers of story and mass of floor on dynamics characteristics are analyzed.

根据结构动力学原理推导了该结构动力特征方程，分析了一榀复合结构体系的支撑刚度、层数和楼层质量变化对动力特征（固有频率）的影响。

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It summarizes stability theory of structure briefly, which is based on reading large numbers of relative literature in domestic and foreign, introduces some typical analysis methods and views of its developing trend& application foreground.

在阅读了大量国内外相关文献的基础上，简单总结了结构安定理论，并分类归纳介绍了一些典型的、有效的安定分析方法，展望了结构安定分析的应用前景和发展方向。

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The theory of structure flexibility about capital thinks: enterprises should train a kind of financial buffer capacity, find the best capital structure block of suiting oneself but not the most advantage.

资本结构柔性理论认为，企业应培养一种财务缓冲能力，找到适合自己的最佳资本结构区间，而不是一个最优点。

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The theory of structure design, displacement analysis, workspace analysis, trajectory planning, kinematic and dynamic model for the main feed mechanism of parallel machine tool is studied extensively and systematically.

对并联机床的结构设计、位置分析、工作空间分析、轨迹规划、运动学分析和动力学建模等方面的理论进行了深入系统地研究。

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This paper analyses the relations between spatial structure and architectural morphology briefly by the theory of structure and architectural morphology, this is the basis on which we will research deeply.

本文拟在建筑形态构成与结构理论等方面，对空间结构与建筑形态的关系进行初步分析，作为今后进行深入研究的基础。

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These structures not only enrich the theory of structure models in coal geology, but also show a new approach for finding coal in coal deficient provinces in South China.

这些构造的研究不仅在理论上充实了煤田地质学构造模式；更在实践方面为我国南方缺煤省分的找煤工作开辟了新的方向。

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Sujiao version textbook: the theory of structure and the applications of properties used simultaneously, learning activities focus on discussing and thinking types of activities.

苏教版教科书采用结构理论与性质应用并举的方式，学习活动类型重讨论与思考类活动。

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