System Electronic Chart ( SENC) is the direct source of data for ECDIS. Electronic Chart database of user format is the base of SENC.

1、

As the basic of electronic chart application system, ECDB ( Electronic Chart Database) decides the function and performance of the system.

电子海图数据库是电子海图应用系统的基础，它决定了电子海图应用系统的功能和性能。

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2、

Taking the chart data of format S-57 as the source data, in this paper we utilize the database management system Oracle 9i to build up electronic chart database, and also accomplish quick searching for the SENC data through R-tree spatial index technology.

本文以S&57标准格式的海图数据为数据源，利用Oracle9i数据库管理系统，建立电子海图数据库，并借助R树空间索引技术，实现电子海图数据的快速检索。

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3、

This platform supports internet/ intranet and can realize the share of electronic chart database.

该平台支持Internet/Intranet，能够实现电子海图数据库的共享。

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4、

A Knowledge-Based Approach to Fuzzy Querying over Relational Database

一种基于知识的关系数据库模糊查询方法

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5、

First of all, this paper investigates research status of fuzzy relational database and properties of vague set, and then puts forward a generalized fuzzy relational data model on vague set ( VGFRDM) and a fuzzy database structured query language on vague set ( VFSQL).

本文首先探讨了模糊关系数据库的研究现状和Vague集的性质，然后提出了基于Vague集的广义模糊关系数据模型VGFRDM和基于Vague集的模糊数据库查询语言VFSQL。

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6、

A fuzzy relational database model with weighted fuzzy attribute values is presented and the concepts of semantic distance and fuzzy users' view are introduced.

本文首先提出了一种属性具有加权模糊值的模糊关系数据库模型，引入了语义距离及模糊视图的概念。

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7、

The results proves that the relational database converted into fuzzy relational database, the performance is very similar, and the feasibility is higher.

结果证明由关系型数据库转为模糊数据库后性能相近，可行性高。

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8、

Quotient Operators of Fuzzy Relational Database Based on the Semantics

一种基于语义的模糊关系数据库除操作

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9、

Design and Implementation of Fuzzy Relational Database

模糊关系数据库FRDBMS的设计与实现

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10、

And a brief introduction of fuzzy relational database technology applications.

并简单介绍了模糊关系数据库技术的应用领域。

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11、

D parameterized solid modeling can be realized in CAD system with the application of EDB principle.

详细介绍了工程数据库的设计、体系结构、工作原理及访问实现,并给出了工程应用实例.

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12、

EDB will issue a Certificate of Incorporation to schools when their IMCs are established.

教育局会在该学校设立法团校董会时向学校发出“法团校董会证书”.

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13、

For local and secondary school teachers, please apply via EDB Training Calendar System.

本地中、小学教师请透过教育局培训行事历报名.

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14、

ARTs-EDB is an embedded active real-time database researched and developed independently by us.

ARTs -EDB 是自行研发、拥有自主知识产权的嵌入式主动实时数据库.

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15、

TGF � � 1 could partially reverse the expression of EDA and EDB regions.

转化生长因子β1可部分逆转EDA、EDB的表达.

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16、

ARTs-EDB takes the S-A model as its trigger model.

ARTs-EDB的触发器采用S -A 模型.

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17、

According to the field function, there are five Methods : To visualize the data field.

数据发射其能量的形式和特性的不同,导致数据场场强函数的差异.

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18、

Drag the data field you want from the Data Sources window to your document.

将您想要的资料栏位从[资料来源]视窗拖曳到文件.

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19、

Data Field names cannot be blank. Please enter a name for this data field.

“数据字段”的名称不能是空白. 请输入此数据字段的名称.

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20、

For a complete example, see How to: Customize Data Field Display in the Data Model.

有关完整示例, 请参见如何: 在数据模型中自定义数据字段显示.

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