业务网络层：业务网络采用成熟的以太网交换机冗余技术，比如堆叠或者主备模式。
Service network layer: the service network USES the mature Ethernet switch redundancy technology, such as the stack or main standby mode.
阐述了双机热备技术在电力自动化系统中应用的重要性，探讨了电力自动化主站系统中双机热备技术的应用条件和应用模式。
This paper expounds the significance of bi-plane heating preparation in the electricity automation, probes into the condition and style of the application of bi-plane heating preparation technology.
阐述了双机热备技术在电力自动化系统中应用的重要性，探讨了电力自动化主站系统中双机热备技术的应用条件和应用模式。
This paper expounds the significance of bi-plane heating preparation in the electricity automation, probes into the condition and style of the application of bi-plane heating preparation technology.
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