摘要
讨论 VPDN 网络技术,以建立市、县、乡、村四级计划生育网络系统为例论述 VPDN 网络技术的应用。
Discussing on VPDN network technology, then the author brought about that we should establish the four levels of birth control network system, named city, county, country, villagebirth control network,andtook it for instance expounding to explain the application of VPDN technology network.
