数据库

Data mining, known as Knowledge Discovery in Databases, is defined as the nontrivial extraction of implicit, previously unknown, and potentially useful information from a great volume of data accumulations. It uses machine learning, statistical and visualization techniques to discover and present knowledge in a form being easily comprehensible to humans. Data mining is an advanced data processing technique.

数据挖掘是在数据和数据库急剧膨胀的背景下，为解决"人们被数据淹没，但却饥饿于知识"这种困境而产生的，也是数据库技术、人工智能技术、统计技术、可视化技术等发展的结果，其目的就是从大量的、不完全的、有噪音的、模糊的数据中提取出隐含在其中的潜在有用的可信、新颖并能被人理解的信息和知识，它是一种高级的数据处理过程。

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 access control method is one of the most important aspects in measuring the security of a database system.

数据库系统中用户的访问控制方法是衡量数据库系统安全性的重要标志之一。

Therefore at present the theory of acyclic database schema design has become a new important branch of database study.

无环数据库模式的设计理论研究，已成为了当前数据库研究的一个新的重要分支。

Combining the database and graph theory put the theory of acyclic database schema forward.

数据库理论与图论的结合产生了无环数据库模式设计理论。

Today, database applications with three-tiered architecture have become the mainstream in the scope of database applications.

数据库应用程序的体系结构由单层结构发展到了三层和多层结构，目前，三层结构的数据库应用程序已成为数据库应用系统的主流。

With the development of the network technology, network applications have permeated into each sector of human society. Web station, a strong point in net world, has also been focused on by human being.

随着Internet的飞速发展，机关、学校、公司、企业都已经或正在建立自己的网站和论坛，而一个真正的、完善的论坛离不开Web数据库技术， Web数据库技术可以实现浏览器与数据库的双向交互。

With the development of the network technology, network applications have permeated into each sector of human society. Web station, a strong point in net world, has also been focused on by human being.

摘要随着Internet的飞速发展，机关、学校、公司、企业都已经或正在建立自己的网站和论坛，而一个真正的、完善的论坛离不开Web数据库技术， Web数据库技术可以实现浏览器与数据库的双向交互。

Thermochemical database management system is constructed. Due to the flexibilities and advantages of Delphi language in developing database management system , it is used to develop the TDBMS based on Windows 95/98. TDBMS is integrated in CPD system.

建立了完善热化学数据库管理系统，由于Delphi编制数据库应用程序的极端灵活性，本程序系统在Win95/Win98平台上，采用Delphi编程，编制了功能齐全的热化学数据库管理模块，并集成在化学位图绘制系统中。

Their search resources include Derwent, USPTO, JAPIO and specialized databases, like CAS, EI.

他们的专利检索资源包括德温特数据库、美国专利商标局数据库、日本专利数据及专业学科数据库，如化学文摘、工程索引等。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。