Query optimization is the main problem of query processing research, thus in particular discusses cost estimated, query plan, search Spaces and so on related problems.
查询优化是查询处理研究的一个主要问题，为此着重分析研究了查询优化所涉及的代价估计、查询规划和搜索空间等相关问题。
This paper makes a brief summary of the main models and research framework of supply chain game theory and discusses the concerned problems deserving further studies.
文章对供应链博弈的主要模型及研究进展作了简要综述，并提出一些值得继续探讨的问题。
The main character of this paper is the combination between theory and practice to solve the practice problems by using transport theory, operation research.
本论文以理论联系实际为主要特点，运用运输理论、运筹学、计量经济学的原理和方法来解决实际问题。
Objective: Understand the main problems in evaluation of fundamental research, put forward Suggestions and give reference to improving evaluation.
目的：了解我国基础研究评价中存在的主要问题，提出改进建议以供参考。
Research status of hopping robots for planetary exploration (PEHR) is reviewed, the main problems in its development are analyzed, and the development trend is predicted.
综述了用于行星探测的跳跃机器人(PEHR)的研究现状，分析了PEHR研究所面临的问题，并预测了其发展趋势。
Research on vibration problems which is the main reason causing bottom drilling tool failure, can reduce drilling tool damage and emergence of underground accidents.
振动问题一直是引起底部钻具失效的主要原因，对其进行研究能减小钻具损害和各类井下事故的发生。
How to eliminate the two problems is the main task of the research of OFDM. In this thesis, we mainly discuss the problem of frequency offset estimation.
如何克服这两个问题是OFDM技术研究的主要方向之一，本文主要是研究OFDM技术中的频率偏差估计问题。
The main content of this paper is the practice research of the "Original physical problems" in physics teaching in middle school.
本论文的主要工作是运用原始物理问题培养中学生物理能力的实践研究。
The current research states of passive, active and integrated vibration control for flexible mechanisms are presented. The main research methods and the existing problems in the area are reviewed.
本文从被动控制、主动控制及主被动一体化控制等方面论述了柔性机构振动控制领域的研究现状、主要研究方法及存在的问题。
This paper introduces the oversea and domestic research generalization, progress, main assessment methods and the exiting problems of long distance oil-gas pipeline engineering risk assessment.
介绍了油气长输管道工程风险评价的国内外研究概况、进展、主要评价方法及存在的问题。
The main problems of pulverized coal combustion are to improve efficiency of combustion and to decrease pollution. Latest development of these aspects research is generalized in this paper.
煤粉燃烧需要解决的主要问题是提高燃烧效率和降低污染，对这两大问题的研究进展进行了概述。
This paper reports the theme, subject, research program and decorate result of the series map of Wuhan, and discusses main problems about the design of the series map.
从系列地图的选题、专题内容的确定、系列地图的技术路线、整饰效果等方面，阐述了系列地图总体设计着重解决的主要问题。
The main problems which invariant theory research are the set of generators of invariants, the defining relations of the generators of invariants, the structure of invariant ring, and so on.
不变理论研究的主要问题是不变环的生成元集合，生成元之间的定义关系及环结构等等。
Introduces briefly the current situation of the research on the numerical simulation of water environmental capacity in tidal river and analyzes the main problems to be overcome.
介绍了感潮河道水环境容量理论及计算的研究现状，分析了存在的主要问题，提出了开展闽江下游河道水环境容量研究的初步设想。
By the research of database index, A new and efficient database index built by multi-dimension linked lists is given out , and also main problems of the database index are discussed there.
通过对多维链表的研究，提出一种全新的、基于多维链表的、可以同时在多个属性上建立高效数据库索引的方法，并对这种索引方法的主要问题进行了比较详细的讨论。
This paper describes the importance and necessity of knowledge management for enterprises, and discusses the research object and main problems of enterprise knowledge management system.
本文描述企业知识管理重要性、必要性和必然性，对企业知识管理体系的研究对象和主要问题作必要的归纳，并为更深入的研究工作做准。
The communication barrier between administrators and researchers is one of main problems in the research management of local agricultural research institutions.
沟通障碍是地方农业科研机构科研管理工作的主要问题之一。
Research presented in this paper, including the current profile on the verbs, meaning topics, the main research methods, the scope, rationale, and the corpus source of the problems.
陈述本论文的研究综述，包括目前关于动词研究概况、选题意义、主要研究方法、研究范围、理论基础、语料来源以及问题的提出。
The purpose is to take up the main problems of the documentary credit settlement in a whole view after the research and exploration as possible as the author can.
通过对跟单信用证的若干法律问题进行力所能及的研究与探讨，旨在对跟单信用证结算中最主要的问题作一概括论述。
The stories told by Education Narration research are based on the real school life and problems. The main body of research is made up of teachers. Therefore, teachers are in favour of this research.
由于教育叙事研究所要讲的故事基于学校真实生活，以学校现实问题为研究基础，以教师为研究主体，因此为教师所青睐。
In the first chapter, we briefly introduce the research progress, present situation and main methods of soliton theories and perturbation problems of bright and dark solitons.
在第一章中，我们简单介绍孤子理论、亮孤子和暗孤子微扰问题的研究进展、现状和主要方法。
The text indicated that the types of the high-rise dwelling houses and traffic spaces were two main problems in Zhengzhou city. They were the research emphasis of the text.
本文认为前两者分别涉及到了高层住宅的类型和交通空间设计，是郑州市高层住宅结症较多的两个问题，为本文研究的重点。
The research in the thesis is tightly combined with the practice of project, with the main emphasis on solving the Dalian Municipal Construction intelligent optical network engineering problems.
本论文的研究内容结合工程实际，主要侧重于解决大连市建设智能光网络的工程实际问题。
Problems arising from the development of HRIS and the main contents of HRIS for a research institute are described and some key factors for successful development of HRIS are detailed.
以某研究所为例，阐述建立的人力资源信息系统的基本内容；并详细解释了人力资源信息系统成功开发的关键要素。
One of the main problems in FOG research is to realize linear and digital output. This problem can be solved by forming close-loop FOG using frequency shifters.
目前光纤陀螺研究的关键问题之一是如何扩大其线性动态范围并获得数字输出，解决这一问题的方法之一是利用移频器构成闭环光纤陀螺。
Lastly, the author reviewed the basic problems of research on judgments of causal power of single causal relationships: the main impact factors and the mechanism of judgments of causal power,...
最后，概述了单一因果关系因果力判断研究的基本问题：因果力判断的主要影响因素和过程机制、研究的方法问题。
The third part is the keystone of the research. The author sums up the main problems of the vocabulary teaching at senior high school and strategies for these main problems.
第三部分是本文的研究重点，在调查研究的基础上总结出高中英语词汇教学存在的主要问题，并且针对问题提出相应的改进策略。
Based on introducing the situation of utilization, the main problems and the research trend were also discussed in this article.
对蜂粮研究和开发利用中存在的问题和研究方向进行了讨论。
Based on introducing the situation of utilization, the main problems and the research trend were also discussed in this article.
对蜂粮研究和开发利用中存在的问题和研究方向进行了讨论。
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