语义 Web 服务开发应将重点放在通信过程中的基本请求-响应关系上。
Semantic web service development should focus on the basic request-response relationship in the communication process.
现场总线是一种串行的数字数据通信链路，它沟通了生产领域的基本控制过程之间以及与更高层次控制过程的自动化控制设备之间的联系。
Field bus is a kind of serial digital data communication chain way, it links up to basically control in production field and high levels control course in the automation's control equipment.
本文简要介绍了VOIP的基本概念和软件结构，重点分析了VOIP的分组传输过程，并对VOIP通信中的网络问题及解决方法进行了探讨。
This paper introduces briefly the concept and software architecture of VOIP and mainly analyses transmission of packets and solutions of network problems.
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