详细研究

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。

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 interaction between chemisorption and multilayer surface segregation is discussed in detail.

采用格林函数方法和多重耦合自洽相干势近似方法，研究了氢在Au-Ag多层偏析无序二元合金表面的化学吸附，详细地讨论了DBA表面的多层偏析和化学吸附间的相互影响。

Based on the detailed contrast between the chondrite normalized REE pattern s and REE geochemical evolution law, this paper proves that the ore bearing fluid for the Carlin type gold deposits in the area mainly originates from the upper mantle differentiation, and that the crust matter partly contaminates the plutonic ore bearing fluid during moving from mantle to crust.

通过稀土元素配分模式的详细对比和地球化学演化规律的研究，论证了滇黔桂地区金矿的成矿物质主要来源于上地幔分异，但深部成矿流体在运移至地壳的成矿过程中不可避免地混染了部分地壳物质，从而在一定程度上掩盖了成矿物质的实质来

Based on the detailed contrast between the chondrite normalized REE patterns and REE geochemical evolution law, this paper proves that the ore bearing fluid for the Carlin type gold deposits in the area mainly originates from the upper mantle differentiation , and that the crust matter partly contaminates the plutonic ore bearing fluid during moving from mantle to crust.

通过稀土元素配分模式的详细对比和地球化学演化规律的研究，论证了滇黔桂地区金矿的成矿物质主要来源于上地幔分异，但深部成矿流体在运移至地壳的成矿过程中不可避免地混染了部分地壳物质，从而在一定程度上掩盖了成矿物质的实质来

In the first part of dissertation, the basic theory of conformal array is introduced. The three-dimension DBF of circular array and cylinder array are presented.

首先，介绍了共形阵的基本理论及相关技术，并对共形阵的常规阵列均匀圆阵和圆柱阵进行了详细的三维波束图仿真研究。

On this basis, we circumstantiate material removal mechanism of colloidal SiO2 polishing LBO crystal and formation of super smooth surface, and study the relationship among pH of the slurry and material removal rate and surface roughness.

在此基础上，对胶体 SiO2抛光 LBO 晶体表面材料去除机理和超光滑表面的形成进行了详细的描述，研究抛光液的 pH 值与材料去除率和表面粗糙度的关系。

Classical matrix groups play a prominent role in this study, not only as vehicles to illustrate general results but as primary objects of interest.

Classical矩阵群体在此研究了突出的作用，不仅作为一般的车辆，但结果说明详细，作为首要关心的对象。

In view of the disadvantages existing in the proof of the theorem of the classification, this dissertation analyzes the necessity and feasibility to give a second proof, and elaborates on the GLS Project according to the latest research information.9. The finish of the classification of finite simple groups has profound influence on mathematics and other fields.

挖掘了分类定理最初证明中存在的弊端，提炼并概括出对分类定理进行二代证明的必要性与可行性，通过查阅最新研究资料，详细介绍了目前正在进行的GLS计划。9。

This article detailedly expatiated upon the principles, contents and methods of cropland classification; it analyzed the necessity to combine the work of cropland classification with GIS technology, summarized the attributions of ARC/INFOand some other related softwares; it established the technologic route of cropland classification supported by GIS, by a case study in Liwu Town,Li County Hebei Province, this article expatiated the practicable mechanism of combining the function of ARC/INFO with the work of cropland classification, and put forward some new ideas and approaches of utilizing GIS: this paper put forward the idea of coding the polygons in the basic graphic database such as soil map and land use map according to their attributes, and put forward the detailed coding project; based on the code databases, it expatiated upon the detailed approaches to create single梖actor map and output the final classification map; it put forward the principles and the method of creating classification units in the environment of GIS, that is how to keep the lines of soil polygon, the border of districts and the important objects such as residential areas, banks of rivers and roads ,and how to overlap single梖actor soil map and land use map, and to delete some vector lines of the overlapped map appropriately; it detailed the methods of creating mathematic model of classification coefficients in the environment of computer, and used FOXPRO6.0 programs to realize the automation of calculating coefficients; it represented the method of plotting the final map by overlapping various coverages according to the code tables and lookup tables, the process of outputting the cropland classifying map was finished by program.

本文法对耕地等别划分的原则、内容及方法作了较详细的阐述，介绍了多系数综合修正法的耕地等别计算方法及其具体应用和AHP的确权方法；分析了耕地等别划分工作与地理信息系统技术相结合的必要性，简要介绍了地理信息系统软件ARC／INFO及其他相关软件的功能特点，制定了地理信息系统支持下耕地等别划分的技术路线，通过对河北省蠡县蠡吾镇的实证研究，重点阐述了ARC／INFO及相关数据库软件与耕地等别划分结合的有效机制及GIS应用的一些新思想、新方法：提山了对土壤图和土地利用现状图等基础图形数据库进行特征编码的思想和具体的编码方案，阐述了基于与图形库相链接的特征编码表，单因素图提取、成果图的输出的具体实现方法；提出了GIS环境下耕地单元划分的原则和方法，即在保留土壤因素图斑界线、行政界线和重要地物等的原则下，将土壤单因素图和土地利用现状图进行拓扑叠加，对叠加图中的矢量线进行适当的删除；阐述了在计算机环境下，耕地分等参数计算模型建立的方法，并用FOXPRO6.0语言程序实现了参数计算的自动化；阐述了根据图形库特征编码表和建立绘图符号查找表，按不同图层叠加绘制成果图的方法，该过程用命令程序实现耕地等别图的输出。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。