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
- Anna Komnene
- Annales
- Annales Geophysicae
- Annales school
- Annalist Documents of Buddhas and Patriarchs in Successive Generations
- annalistic bibliotheca poem
- Annalistic History of the Founding of Qing Dynasty
- Anna Louise Strong
- Annals of Bai Nationality Music
- Annals of Chinese Quyi
- Annals of Ci Poets and Their Works
- Annals of Haiyan County
- Annals of Heavenly Kingdom
- Annals of Southern Ming
- Annals of Statistics
- Annals of the Sage of the Undifferented Prime
- Annals of Various Affairs on Operatic Performances at Tangjiawan Theatre
- Annals of Wu and Yue
- Anna Magnani
- Anna Maria Lenngren
- Anna May Wong
- Annam leaf turtle
- Anna Neagle
- Anna Nikolayevna Esipova
- Anna Pavlova