This paper aims to build such a software system on existing network and computer equipment to find a solution to it.

本文的研究目标就是在现有的网络设施和计算机设备的基础上建立一个纯软件系统来解决这一问题。

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Utilizing existing computer network resources to set up the communication system of the telephone opened up a new way for the telephone communication.

利用现有的计算机网络资源组建电话通信系统为电话通信开辟了一条新的途径。

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Actually these are common problems existing during the development of computer management system in colleges' different departments.

实际上，这是院校各部门在开发计算机管理系统时普遍存在的问题。

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It contained a malware application, which had managed to bypass existing security controls, but was not able to spread through the computer system.

BBC: Australia's central bank targeted by hackers

Because the technique uses off-the-shelf wireless transceivers similar to those used in home computer networks, "the cost of this system will be cheaper than existing methods of monitoring breathing, " says Neal Patwari, senior author of a study of the new method and an assistant professor of electrical engineering.

ENGADGET: Researchers use wireless network to monitor breathing, could save lives