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
- variability selection hypothesis of hominine evolution
- variable
- variable air volume air conditioning system
- variable-air-volume terminal unit
- variable annuity insurance
- variable aperture method
- variable arc
- variable-area track
- variable autotransformer
- variable base-line interferometer
- variable base-line interferometry
- variable boundary
- variable boundary conditions
- variable bubble-point cas
- variable busywork of agricultural machine
- variable camber
- variable capacitance amplifier
- variable-capacitance diode
- variable capacitance transducer
- variable capital
- variable carrier
- variable cluster analysis
- variable coefficient
- variable coefficient model
- variable coil