工学 城域网 释 metropolitan area network 城域网 一种介于局域网与广域网之间，覆盖一个城市的地理范围，将同一区域内的多个局域网互联起来的中等范围的计算机网。属于中距离的传输网络。城域网位于骨干网和接入网的汇接处，在信息传输网络中处于承上启下的位置。
网络与数据通信 协议体系与组成结构 释文 metropolitan area network, MAN 城域网
- Burgtheater
- Burgundian Kingdom
- Burgundian School
- burial cycle
- burial ground
- burial ground; waste graveyard
- burial pot
- Buriats
- buri chan
- buried ancient river
- buried-channel CCD
- Buried Child
- buried drill
- buried electrode
- buried karst
- buried oil tank
- buried servo
- buried slide technique
- buried surface
- buried tunnel junction surface emitting semiconductor laser/ Bburied tunnel junction vertical cavity surface emitting laser（BTJ-VCSEL）
- Buri Ram
- Buriram
- Burj Khalifa Tower
- Burke-Schumann flame
- Burkhan Tolgoi Cemetery