After six months of effort, the voice chatting system was completed. This system includes requirements analysis, and functional modules, multimedia programming, server-client model.
经过半年多的努力，终于完成了语音传输零碎的需求剖析、模块功用划分、多媒体编程、效劳器-客户端模型等。
The general structure of this system includes three parts, the analysis of system requirements, functional design and data base design.
其中，数据库设计包括空间数据库设计和属性数据库设计，并且需要建立它们之间的连接关系。
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