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文中介绍华能广东公司的ATM广域网络系统结构，它是以ATM网络为主体、结合LAN系统的混合结构。该结构能够提供低时延、高带宽计算机并行处理，通过LAN传送多媒体信息，从而实现电力信息系统的分布处理和多媒体信息处理功能。
This article introduces Huaneng Guangdong company ATM wide area network system architecture, which is based on the ATM network as the main body, combined with the mixed structure of the LAN system. The structure can provide low latency, high bandwidth computer parallel processing, transmitting multimedia information via LAN, so as to realize the distributed processing of power information system and the multimedia information processing function.