求翻译：城域网（Metropolitan Area Network），简称MAN，基于一种大型的LAN，通常使用与LAN相似的技术。之所以将MAN单独的列出的一个主要原因是已经有了一个标准：分布式队列双总线DQDB 拓扑图（Distributed Queue Dual Bus），即IEEE802.6。DQDB是由双总线构成，所有的计算机都连结在上面。是什么意思？

MAN (Metropolitan Area Network), referred to as MAN, based on a large LAN, the LAN is usually used similar technology. The reason will be listed in a separate MAN mainly due to have a Standard: Distributed Queue Dual Bus DQDB topology (Distributed Queue Dual Bus), the IEEE802.6. DQDB is a dual bus s

metropolitan area network) to Network Area (Metropolitan MAN, based on a large-scale LAN LAN, usually use with similar technology. The reason the MAN separate lists of one of the main reasons is already has a standard: distributed queue dual bus DQDB topography (Distributed Queue Dual IEEE Bus), i.e

The metropolitan area network (Metropolitan Area Network), is called MAN, based on one kind of large-scale LAN, usual use with LAN similar technology.The reason that a primary cause which independent lists MAN is already had a standard: Distributional formation double main line DQDB analysis situs c

Man (Metropolitan Area Network), the short MAN, based on a large LAN, with LAN, usually using similar techniques. Is MAN a separate lists one of the main reasons are already have a standard: DQDB distributed queue dual bus topology (Distributed Queue Dual Bus), that is, IEEE802.6. DQDB is made up of

MAN (Metropolitan Area Network), referred to as MAN, based on a large LAN, the LAN is usually used similar technology. The reason will be listed in a separate MAN mainly due to have a Standard: Distributed Queue Dual Bus DQDB topology (Distributed Queue Dual Bus), the IEEE802.6. DQDB is a dual bus s