| 1. | Ppsn public packet - switched network
公共包交换网 |
| 2. | Public packet - switched network
公共包交换网 |
| 3. | Packet - switched network
封包交换网络 |
| 4. | It is the unit in which information ( a message ) is transferred in a packet - switching network
它是分组交换网络中信息（即报文）传递的单位。 |
| 5. | 17 what is a major advantage of circuit - switched networks over packet - switched networks
题目的意思是说从线路交换转变为包交换网络的好处是什么？ |
| 6. | In these networks , the data is transmitted in labeled cells , frames , or packets through a packet - switched network
在这些网路中，资料以标记的细胞，讯框或封包中经过一个分封交换的网路被传输。 |
| 7. | Use of packet - switched network can be charged according to the volume of data transferred and not to any notion of time spent online
在使用分组交换网络时，可以按照传输的数据量（而非在线时间）收费。 |
| 8. | Active networks represent a quantum step in the evolution of packet - switched network by providing a programmable network interface in network nodes
主动式网络技术提出了可编程的网络体系结构的思想，标志着分组交换网络设计思想的飞跃。 |
| 9. | Packet - switched networks were developed to overcome the expense of public circuit - switched networks and to provide a more cost - effective wan technology
分封交换网路被发展用来克服昂贵的公众电路交换网路并提供一种较有成本效益的广域网路技术。 |
| 10. | From the above figure , we can see the original structure remains unchanged and the new packet - switched network is formed by adding a packet control unit ( pcu ) to the bss part
图1gprs网络结构从网络结构图可以看到，原有的网络结构保持不变，只是在bss部分增加了分组控制单元( pcu ) ，新建了一个分组网络。 |
