查询词典 relational

Which are important in object-relational databases, and how to translate the select-from-where cause into representations of monoid system are discussed. We take into account the onedimensional and multidimensional data partition methods, physical storage structures and further more how to parallelize them.

本文讨论了对象-关系型数据库中的重要数据类型-集类型如表、集合等的有效实现；讨论了select-from-where查询语句在monoid系统中的表示方法，给出了多种一维／多维数据分布方法、物理存储结构及其并行化方法；系统地分析、设计并实现了并行数据库系统的数据库原语操作及其基本并行算法。

Parts of current parallel databases support expanding of data types, but all of them lack of theoretical foundation. It is difficult to predicate the performances of parallel query, complicated to optimize parallel query and unattainable to keep the correctness of parallel query optimization This thesis, for the first time, combines monoid algebra system with BSP parallel model systematically, and provides a general-purpose parallel object-relational database systems-PORDBMS.

文章系统地研究了资源分配问题的分解协调理论与方法，给出了非线性分解式模型的构造和有效的求解方法，其中对主问题提出了适应性较强的修正算法，可用于一些难于公式化的问题的模型构造与求解，逐步寻优策略可有效地求解非线性关联约束优化问题。

The morningtide outdoors sports have the time arrangement flexibility, form of action multiplicity, active content characteristics and so on universality, is the baby grasps coordinated relational the best place.

晨间户外体育活动具有时间安排的灵活性、活动形式的多样性、活动内容的广泛性等特点，是幼儿掌握协调关系的最好场所。

Grey relational analysis method explored by Deng Julong in 1989 has advantage of simplification and accuracy over dealing with the multiple attribute decision making problem, which could also transform the qualitative evaluation factors to quantitative analysis and put up comprehensive evaluation.

灰色关联分析方法探讨邓巨龙在1989年曾利用简化和准确性不处理与多属性决策问题，这也可以转化定性评价的因素进行定量分析，并提出了综合评价。

Take the data management system of Yimin mining area geological report electronic edition as an example,use unified management pattern of geo information technical relational data and graph data,combined with NETT data transmission and data storage platf...

以伊敏矿区电子版地质报告数据管理系统为例，应用地理信息技术的关系数据与图形数据统一管理模式，结合网络技术的数据传输与存储平台，建立了基于网络信息服务的地质勘探数据管理系统，可以充分挖掘地质勘探数据应用的深度和广度，同时便于地质勘探数据分发共享。

Ordinarily, we define the arithmetic and relational operators as nonmember functions, as we do here with our Sales_item addition operator

一般而言，将算术和关系操作符定义为非成员函数，像下面给出的 Sales_item 加法操作符一样

Their heterosexual orientation is always in internal dialogue with both oedipal and preoedipal mother- child relational issues.

她们的异性恋倾向总是在俄狄浦斯和前俄狄浦斯的母亲－孩子之间的关系进行内部对话。

Now keyword search over relational database is becoming a hot research topic in both database and IR area. There are two kinds of popular keyword search systems, while neither of them can give accurate results with high speed. The on-line system can obtain the latest search results while the search speed is low; The off-line system speeds the query processing by means of preprocessing, but the disadvantage lies in expensive cost needed to preprocess again once the database is updated.

关系数据库上的关键词检索已成为数据库和信息检索领域的研究热点之一现有数据库关键词检索系统可分为在线和离线两大类，它们都难以兼顾查询效率和效果：在线系统能够获得数据库最新结果，但速度较慢；离线系统使用预处理提高查询速度，但若数据库更新就要重新执行预处理。

Based on analysing the respective characteristics of regular PID controller in trational control theory and fuzzy logical controller in intelligent control theory, the idea and technique of expert system is introduced to develop a novel kind of hybrid intelligent controller. It can coordinate two kinds of control algorithms and tune the control parameters on-line for different working zones of the controlled process.(3) The hybrid knowledge expression model, which combines discrete state space model, fuzzy relational model and rule base model, is proposed based on analysing the characteristics of all kinds of knowledge expression models. The knowledge of the controlled process in different aspects can be expressed resonably by it. Based on the model mentioned above, the related optimization strategy for complex system is developed.

本文的主要贡献体现在：（1）以炼油厂的催化裂化装置和钢铁联合企业的大型焦炉装置两个典型的复杂工业过程为例，分析了工业大系统的许多不易控制的特性，并归纳了其中的几个典型特征；（2）针对经典控制理论中的常规PID调节器和智能控制技术中的模糊逻辑控制器各自的特点，通过引入专家系统的思想和方法，开发了一类混合式专家控制器，它同时具备在线协调两种不同控制规律和自动学习控制规则的能力；（3）通过分析各种知识表达模型的特点，提出了一类包括离散状态空间模型、模糊关系模型和规则基模型在内的混合知识表达模型，它能对过程知识在各个不同侧面给予合理的描述。

This paper presents the mapping from the functional dependency set in a relational schema into a directed graph on a plane.

本文将关系模式函数依赖集映射成千面上的有向图。

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