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
- Regulations of Ningxia Hui Autonomous Region on Environmental Dducation
- regulations of public security intelligence
- regulations of safety risk assessment
- Regulations of Teaching Achievement Awards
- Regulations of the Communist Party of China on United Front Work
- Regulations of the Palace Library
- Regulations of the People's Republic of China concerning the administration of the Protection of underwater cultural relics
- Regulations of the People's Republic of China for Navigation Marks
- Regulations of the People's Republic of China Governing the Registration of Ships
- Regulations of the People's Republic of China on Academic Degrees
- Regulations of the People's Republic of China on Administration of Chemicals Subjected to Supervision and Control
- Regulations of the People's Republic of China on Administration of Import and Export of Endangered Wild Animals and Plants
- Regulations of the People's Republic of China on Administration of Traffic Safety in Inland Rivers
- Regulations of the People's Republic of China on Chinese-Foreign Cooperation in Running Schools
- Regulations of the People's Republic of China on Compilation and Publication of Maps
- Regulations of the People's Republic of China on International Ocean Shipping
- Regulations of the People's Republic of China on Nature Reserves
- Regulations of the People's Republic of China on Protection of New Varieties of Plants
- Regulations of the People's Republic of China on Registered Architects
- Regulations of the People's Republic of China on Safety and Security of Civil Aviation
- Regulations of the People's Republic of China on Seamen
- Regulations of the People's Republic of China on the Administration of Navigible Channels
- Regulations of the People 's Republic of China on the Open Government Information
- Regulations of the People's Republic of China on the Protection of Wild Plants
- Regulations of the People’s Republic of China on Administrative Punishment of Fishing Ports Superintendence