The content of chapter 2 is the foundation of building up electronic chart database.
本文第二章的内容是建立电子海图数据库的基础。
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。
The Plat, basis on the International standards of Electronic Chart such as S-57 , S-52 and Performance standards, includes many fields like computer application, database, management, etc.
平台以与电子海图相关的国际标准S-57、S-52及性能标准为依据，内容涉及到航海数学、图形图像处理技术、计算机数据结构、数据库管理技术等多个学科领域。
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