As the basic of electronic chart application system, ECDB 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，它决定电子海图应用系统的功能和性能。
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。
Finally, how the symbol library is applied is Electronic Chart Displaying and Information System (ECDIS) is introduced and the application results are evaluated in details.
最后，介绍了如何将新的点状符号库应用于现有电子海图系统中，并对应用的效果作了详细的评估。
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