基本研究

In the third chapter,We study some geometric properties and spectral propertiesof the Jacobi operator on a solvable extension G of Heisenberg groups H.In the firstsection,we give the definition of G and some fundamental geometric properties on G.Inthe second section,we discuss the Integrability of certain subbundles and the geometricstructure of the induced foliations in case of integrability.In the third section,we studythe spectral properties of the Jacobi operator of G.

可解李群与类对称空间亦密切相关，Damcek-Ricci空间即是广义Heisenberg的一可解扩张李群，在第三章中，我们构造且研究了Heisenberg群的一可解扩张李群G的几何性质，第一节讨论了G的曲率，李指数映射，整体坐标等基本几何性质；第二章研究了TG的某些子丛的可积性及可积时诱导叶片的几何结构；第三节给出了G的Jacobi算子的特征值和相应的特征子空间。

According to this framework, the followings are the contents of each chapter.

根据这样的结构安排，各章节研究的主要内容为：第1章：首先阐述了本论文的选题背景和研究视角，并对文中的三个基本概念进行了阐释。

Based on building a frame research about the shareholding structure and the corporate governance, this atricle apply logic

本文从股权集中度和股东类型两个方面研究了股权结构对公司治理机制的影响，并在此基础上提出了研究股权结构与公司治理问题的理论框架。在建立了基本理论框架之后，文章进

The main researches are as follows:(1) The formatian of hydrodynamic film in rolling deformation zone depends on oil viscosity, rolling speed and inlet conditions, which influence hydrodynamic film thickness, pressure, friction force and slip forward.

整个研究工作包括以下几个方面： 1 研究了轧制变形区形膜基本机制的流体动力学理论与实践，分析了轧制油粘度、轧制速度以及咬入条件对流体润滑形膜厚度的影响，建立了流体润滑轧制变形区膜厚、压力、摩擦力、前滑的模型，首次提出了用稳定轧制因子判断流体润滑轧制过程是否稳定和轧件表面质量的方法。

It came from the study of sun spectrum and gas discharge at 19 century.

原子物理学是研究原子的基本结构、性质及其相互作用规律的科学，起源于19世纪对太阳光谱和气体放电的研究。

This chapter mainly introduces the basic characteristics, relevant technology, research headways and the application fields of WebGIS.

本章主要介绍WebGIS的基本特征、相关技术、研究现状及其应用领域的分类，然后在此基础上，引出本论文的主要研究内容和意义。

The results available now indicate that glass-like carbon synthesized from phenolic resin is a non-graphitizing carbon, and consists of both sp 2-hybridized carbon atoms that form imperfect graphite structure and sp 3-hybridized carbon atoms that are due to the presence of disordered carbon; and in the fullerene-related structure of glass-like carbon, there exist some pentagons and heptagons carbon rings.

玻璃炭作为一种特殊炭材料已广泛应用于许多领域，其制备、性质、应用以及基本结构的研究已经取得了很大的进展，已有的研究结果表明酚醛树脂基玻璃炭是一种典型的非石墨化炭材料，由 sp2杂化态碳原子和 sp3杂态碳原子组成，且在其类富勒烯结构中存在五元环和七元环。

Having consulted all the available literature on the subject, according the basic principal and method of design of radar absorbing materials, composites of epoxy resin-coated ultramicro iron, ultramicro iron-coated hollow glass bead, and hollow glass bead /ultramicro iron/ EP with three-layer structure were prepared.

本文是在查阅了大量国内外文献的基础上，依据雷达波吸收材料研究的基本理论和设计方法，以羰基铁为重点研究对象，采用原位复合的方法制备环氧树脂包裹羰基铁、超微铁包裹中空玻珠以及中空玻珠／超微铁／EP三层结构复合粒子。

This research stress on both of water-saving irrigation technique and engineering reform plan in the irrigation, investigates current situation and main existing problem including geography, geology, social economic condition and so on....

本文研究主要从灌区节水灌溉技术和工程改造方案两方面入手，调查研究灌区现状及存在的主要问题、灌区的自然地理、地质、社会经济等基本情况，通过灌区的水资源供需平衡分析，论证了灌区实施节水改造的必要性和可行性。

Thirdly, the water rights and their trading institutions have been studied in details. The trading incentives and criteria of water resources have been drawn up. According to marketing economy, new trading institutions, including leasing via temporary market, sale and leaseback and option development etc., have been developed, in which the standard steps for leasing via temporary market have been involved and a price model of option development has been founded, too.

进行水权与交易机制的研究，提出了进行水资源交易的诱因和交易的基本原则，根据市场经济学提出了采用通过临时市场交易、售出再租回及采用期权等方法进行水权交易，研究了售出再租回的标准步骤，采用期权理论建立了水资源的期权交易价格模型。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。