查询词典 query

Based on the development, classification, comparation of classific algorithms of spatial indices, the paper designs two efficient spatial indices including the improved quadtree and R+tree, applies them into spatial query processing, and realizes the spatial select query algorithm based the improved quadtree and R+tree, and nearest and k-nearest neighbour query based R tree.

在对空间索引技术的发展、分类和典型算法比较的讨论基础之上，本文设计并实现了两个高效的空间索引—改进的四叉树索引和R+树索引，并将这两个索引应用到空间查询处理中，分别实现了基于改进四叉树和基于R+树的空间选择查询算法以及基于R树的最临近查询和K最临近查询算法。

The digital map input and maintenance subsystem performs format conversion,editing and updating of spatial data;the rail-track video playing subsystem uses video recording as reference data,then plays,inquires and traces the corresponding frames in synchronous to the scaled mileage,realizing the query of the active picture frames;the digital map query subsystem fulfills the map query,preview and spelling of digital map orthograph.

其中，地形图输入与维护实现了数字地图的格式转换、编辑处理以及空间数据的更新操作，解决了不同格式空间数据的互相转换问题；线路录象播放将线路录像数据作为系统的一种索引数据，活动影像的画面与里程相对应，实现了基于线路录像的播放、查询和检索的功能，实现了基于活动画面的查询检索功能；数字地图子系统完成了图形查询、数字地图与线路正射图像浏览、图幅拼接等功能。

And the direction query efficiency based on multi-approximate index is compared with that based on taditional external approximation index. 2 The algorithms of nearest neighbor and reverse nearest neighbor about point, line and ploygen based on multi-approximate index are proposed after the virous methods of distance measure are discussed in detail. And the query efficiency of NN and RNN based on multi-approximate index is compared with that based on taditional external approximation index. 3 The basic concept of semi-join and the strategy of distance-direction semi-join are introduced. And the model of distance relationship, direction relationship and the bounding for spatial object are discussed. Then the method is presented about how to implement the query of distance-direction semi-join, and the efficiency of the algorithm based on multi-approximate index is compared with that based on taditional external approximation index.

即：1在方向关系矩阵模型、开域方向模型基础上，讨论了基于多重近似索引下的定性与定量方向检索方法，并通过实验对基于多重近似索引与外部近似索引下的方向检索效率进行了对比分析；2详细讨论了各种距离度量方法，提出了基于多重近似索引下的点、线、面的最邻近查询和反最邻近查询算法，并通过实验对基于多重近似索引与外部近似索引下的最邻近查询和反最邻近查询效率进行比较分析；3介绍了半连接的基本概念，探讨了距离关系、方向关系以及空间对象数量的约束模型，给出了基于多重近似索引下的距离方向半连接实现方法，并通过实验对基于多重近似索引与外部近似索引下的距离方向半连接的效率进行了比较分析。

Query rewritting based on data souces: our system is construct in LAV style, which describes data sources as views over global schema, so query rewritting technique can be used for query processing here.

基于数据源的查询重写：本文的数据集成系统采用LAV方式，数据源被描述为基于全局模式的视图，因此可以通过查询重写技术构造对全局查询的处理过程。

Internet search: through the air in a letter of the site "on-line trip" to visit query information. Please enter http://www.travelsky.com/travelsky/infoCenterQueryTripOnline.do tickets on the five-coded "set record numbers Block/BOOKING REF" and the names of the passengers, click the query button access to "My trip ."

三、上网查：可通过中航信网站的"行程在线"来查询行程信息。http：//www.travelsky.com/travelsky/infoCenterQueryTripOnline.do请输入机票上五位编码的"定座记录编号/BOOKING REF"和旅客姓名，点击查询按钮，即可查阅"我的行程"。

Only in such a case can graduate students quality be raised and can backbone talents for the socialist modernization construction in the 21ST century be brought up. This paper present the analysis on the present conditions and causal constraints on the design and implementation of physical and health education curriculum in universities in Jilin province from the perspectives of health education, physiology, chorology, healthlogy, psychology, education, nutritional, query based on the methodologies of reference query, system analysis, expert consultation, questionnaire, joint reference querying, etc.

本研究在已有研究的基础上采用文献资料法，系统分析法，专家访谈法，问卷调查法，联机检索法，从健康教育学、体育学、课程论、保健学、心理学、教育学、统计学、营养学等多维角度对吉林省9所本科院校1000名大学生进行分层随机抽样调查研究，了解吉林省大学生体育健康意识及行为现状，分析其存在的问题和原因寻求对策，以利于学校体育改革的健康发展。

I see fit to the circumambience lesson establishes the 疑 queries, the around important a segment establishes the 疑 queries;Can also develop teacher's intense emotion according to the scene that establish, cause teachers and the students emotion the problem of the 鸣 to establish totally the 疑 query;Can also experience personally to establish according to the life the 疑 query.

我认为可以围绕课题设疑质疑、围绕重要句段设疑质疑；也可以根据创设的情景发挥教师激情，引起师生的情感共鸣的问题设疑质疑；还可以根据生活体验设疑质疑。

The thesis also defines several basic operation based on the DOM API and XOEM. According to proposed query languages, such as Lorel and XML-QL, we spell out some essential requirements for an XML query language, it includes: coercion, simple path expression, general path expression, closure property of the output, etc.

结合已有的XML查询语言Lorel和XML—QL，提出了XML查询语言应当具有的一些要素，包括强制类型转换、简单路径表达式、广义路径表达式、查询结果的封闭性等特性。

L Accounts payable Module provides the functions to record the accounts payable and the payable list, query the payable data, total the payable sum and the paid sum of any supplier with any required period, query the detail account of payable account and paid account with the supplier, department, counterman and the time period, analyze the account aging.

应付 完成前期应付账款和付款单的录入，与供应商之间的应付账款的查询，按照设置的日期范围对每个供应商的应付款总额及付款总额进行汇总，按客户和时间范围查询应付账款明细账，按供应商、部门、业务员、时间范围查询付款明细记录，账龄分析。

This article focuses on the line-line, line-region and region-region topological relations algorithm, which come down to the same question: whether there are intersections between line and line. The sweep-line algorithm was studied by many people, but has some deficiencies to be improved, in order to handle some special cases and increase program efficiency. My works as follows: rectangular envelope to reduce executive times , vector cross multiplication to determine intersection between line and line, coordinates and slope method to deal with some special cases. C program examples are showed together.(5) Finally, to prove capability and efficiency of the model and calculation method, some test systems are developed. For example, complex spatial topological relation query, parcels' exact area with the area of linear object reduced in land use, quality inspection to cadastral data according to topological rule, spatio-temporal change query of cadastral data.

将线线、线面、面面之间的拓扑关系实现的算法归结为线与线之间求交的基本问题；为处理一些特殊的拓扑关系情况，提高扫描线算法的效率，探讨了包络矩形粗滤、判断线线是否相交的矢量叉乘法、线节点重合或共线的斜率坐标判断法等改进方法；同时还设计了一种新的节点微小圆求交的算法，可应用于图斑与线状地物细分拓扑关系及地类面积的计算；（5）本文设计了实验系统，包括复杂对象的拓扑关系表达与计算程序、图斑地类面积的计算程序、基于空间拓扑关系规则的地籍数据库质量检查功能，以及时空拓扑关系和变化语义分析等原型，验证了拓扑关系表达模型和计算方法的可行性和实用性。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。