每个虚拟线路上的通信可以用其自己特定的密钥进行加密。
Traffic on each virtual circuit can be encrypted with its own distinct key.
论述采用PSTN电话网，建立“虚拟”多点数据监测的依据和实现方法，实现利用既有PSTN电话网络和线路资源，完成多种信息采集、传送功能。
To make a good use of resource of the PSTN telephony lines, to complete various functions of data collection and transmission is also presented.
对电子线路传统实验方法与虚拟实验方法进行比较、分析，建议以传统实验方法为基础，重视和充分利用虚拟方法。
This article compares and analyses the traditional experimental methods and dummy ones, and suggests the traditional methods as a base, and strengthens and use dummy ones adequately.
当某只蚂蚁偶然发现一条短线路，这个信息通过示踪信息素的强度，间接地传播给其它虚拟蚂蚁。
When one ant stumbles upon a short route , that information is indirectly broadcast to the other vans by the trail 's pheromone strength .
对线路交换、消息交换、包交换，虚拟旁通和直通的平均通信延迟时间以及直通的平均请求响应时间进有了分析。
This paper analyses the average communication delay of circuit-switching, message switching, packet-switching, virtual cut-through and direct-passing and, the average response time of direct-passing.
对线路交换、消息交换、包交换，虚拟旁通和直通的平均通信延迟时间以及直通的平均请求响应时间进有了分析。
This paper analyses the average communication delay of circuit-switching, message switching, packet-switching, virtual cut-through and direct-passing and, the average response time of direct-passing.
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