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
- air sampling
- air-scape
- airscoop
- air-screen cleaner
- airscrew
- air-sea exchange
- air-sea exchange coefficient
- air-sea fluxes
- air-sea flux observation buoy
- air-sea gas transfer velocity
- air-sea heat flux
- air-sea interaction
- air-sea interface
- airsecond
- Air security assurance
- air separation plant control system
- air separation system
- air-set
- air shaft
- air shaft arrangement form
- air sharp shrinkage chute
- airship photography
- airship sport
- air shower
- air sickness