| 释义 |
PSDN
分组［包］交换数据网;［小包交换资料网路］
A set of equipment and interconnecting links that provides a packet switching communications service to subscribers within a particular country.
一套设备及相互连接的链路,为一个专门地区的用户提供包［分组］交换通信服务。 Packet Switching Data Network的缩写。 同public packet switching network。 |