查询词典 relational

As compared with the conventional relational database ,the GIS dat abase has a great deal of merits.

与传统的关系数据库相比，基于GIS的数据库具有不可比拟的优点。

The measure of amino acid ratio and N-terminal sequence of the protein coincided with the relational reports.

所得蛋白质氨基酸测定和N端测序的结果与有关报道的一致。

Aiming at OQL, we treated type as monoid (collection monoid and primitive monoid), and used monoid comprehension as OQL's intermediate representation. Therefore we can merge the rewrite rules for a number of collection types, then employ monoid comprehension in defining algebraic operators, as cut out the limit that in relational algebra/calculus algebraic operators are only for set.

针对ODMG-2.0的对象查询语言OQL，我们把类型提高到幺群级，然后从幺群概括入手，用幺群概括作为OQL的查询中间表示，统一了多种聚集类型的重写规则，幺群概括还被我们用于定义代数操作符，这使得代数操作符突破了关系代数/演算中只针对集合的局限。

When superficial similarity is dominant, young children analogize more easily on superficial similarity, ignoring the spatial relational similarity.

发现当表面相似性占优势的时候，幼儿更容易根据表面相似性进行类比，从而忽略了空间关系相似性。

The new man-hour statistic management information system, which applies Browser/Server framework and Relational Database Management System , is integrated with functions of data acquisition, data processing, data maintenance and report print-out. These have improved the timeliness, accuracy and analyzability of man-hour statistics and provided an effective means for accumulating the historical data of man-hours wo...

新系统采用浏览器／服务器结构和关系型数据库管理系统，集数据采集、数据处理、数据维护和报表生成于一体，提高了人工时统计的及时性、准确性和可分析性；为积累项目实耗工时的历史数据提供了有效手段；为形成工时定额标准奠定了基础；同时为项目投标报价阶段人工时的估算提供了可靠依据。

It can automatically complete the interoperability, display and search of the relational database, and can develop a database application from manual to automatic.

给出了一个基于多Agent的合作求解方法，能自动完成关系数据库的互操作以及搜索显示等应用问题，解决了数据库应用开发从人工到自动的问题。

It was found that electrical field strength and potential around the the sample changed less in the fully insulated chamber than in conducting material phytotron, so it is closer the real condition. Based on the design, the first fully insulated large artificial climate chamber in China, in which temperature , humidity, and atmospheric pressure can be regulated, has been built in our laboratory. The paper developed an insulation parameters automatic test system of high voltage capacitive equipment based on LabVIEW. In the chamber, On-line tanδmeasurements of the capacitive transformer bushings were completed. The effects of environmental factors on tanδwere analyzed, and the curves between the tanδand the environment parameters were acquired. Then, a grey relational model to analyze the effects of main environmental factors on tanδwas built, and the grey relational grade between them was gained in this paper.

完成的主要工作和取得的主要研究成果如下：提出了全绝缘型人工气候室设计方案，计算分析了气候室内悬挂绝缘子和套管时的空间电场分布情况，并和金属材质气候室相比较，论证了该方案的优越性，据此方案研制的全绝缘人工气候室可调节温度、湿度和压力等参数，满足了人工气候试验的要求；开发了基于虚拟仪器技术的高压电容型设备绝缘特性自动测试系统，完成了人工气候室内变压器套管tanδ的在线测量试验，以此为基础分析了环境因素对电容型设备tanδ的影响情况，获得了tanδ与环境参数的关系曲线，建立了环境因素对tanδ影响的灰关联分析模型，得到了主要环境参数与电容型设备tanδ的灰关联度。

In order to store the XML data in relational database, mapping DTD to relational schema is studied.

为了将XML数据存储到关系数据库中，人们研究了从DTD到关系模式的映射方法。

In order to store the XML data in relational database, mapping DTD to relational schema is studied.

为了将XML数据存储到关系数据库中，人们研究了很多从DTD到关系模式的映射方法。

However, it can only implement the limited operation to the spatial objects, cannot carry on transformation, index, interlink age and excavation to the spatial data, and hard integrate other information with combining map variable to set up and analysis new variable. Meanwhile, relational model in the traditional DBMS and the object- oriented modeling do not completely suit the spatial application domain. The relational model can handle topological relation well, but shows inabilities to that complicated level crossing the spatial region. Object-oriented model using software method based on the principle of the customer defined data type supports the abstract data type, especially spatial abstract data type, and possesses polymorphism and inheritances, and it can deal with topological and the layer relation, but hardly processes important continuous phenomenon in space.

GIS是当今操作有关空间信息的成熟工具和技术，但其只能对空间对象进行有限的操作，不能对空间数据进行变换、索引、链接和挖掘，难以集成其他信息来构建和分析新变量；而传统数据库管理模型中的关系模型和面向对象建模也不完全适合空间应用这一领域，关系模型能够较好地处理拓扑关系，但对表示横跨空间区域的复杂层次却无能为力；面向对象模型的软件方法支持抽象数据类型，特别是空间抽象数据类型，具有继承性和多态性，能够处理拓扑和层次关系，但难以处理空间中重要的连续性现象。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失