理学 网络体系结构 释 wide area network 广域网 连接不同地区局域网或城域网计算机通信的远程网。其所覆盖的范围从几十公里到几千公里，它能连接多个地区、城市和国家，或横跨几个洲并能提供远距离通信，形成国际性的远程网络。广域网是互联网的核心部分，但并不等同于互联网。
网络与数据通信 协议体系与组成结构 释文 wide area network, WAN 广域网
- ground station
- ground-structure method
- ground subsidence induced by dewatering of foundation pit engineering
- ground subsidence survey
- ground substance
- ground support equipment
- ground support vehicle
- ground tea
- ground term
- ground test and launch control system
- ground test for separation system under thermal circumstance
- ground test of airborne weapon fire control system
- ground timing system
- ground tissue
- ground treatment
- ground treatment in mountain area
- ground trial
- ground vibration test for stores installed on aircraft
- groundwater
- ground water activity on Mars
- groundwater age
- groundwater available yield
- groundwater balance
- ground water chemical monitoring
- groundwater collecting structure