2.APC Monitoring /Controlling Tasks OverviewThis lesson describes the APC monitoring and controlling tasks that are performed to observe, obtain the status and alarm states of, remove, restore, initialize, switchover, switchback, restart, create, diagnose, configure, and delete APC-related components and/or applications.use all of the available interfaces to monitor the APC system
APC 监视/控制任务概述本课程将描述 APC 监视和控制任务，执行这些任务可以观察、获得 APC 相关组件和/或应用程序的状态及告警状态，并对其进行退出、恢复、初始化、切换、恢复切换、重启、创建、诊断、配置和删除操作。使用所有可用的界面监视 APC 系统
3.Switchback APsRCSUser wants to return the ACTIVE RCSs to the ACTIVE state on their primary AP, such as after a DS-1 has been restored to service.
恢复切换 APRCS用户想要在其主 AP 上将 ACTIVE RCS 恢复到 ACTIVE 状态，比如在使 DS-1 恢复服务之后。
4.a long switchback descent
长而弯曲的下坡路
5.Even at this hour it was acrawl with men, builders pushing up a new switchback stair to join the remnants of the old.
这么早长城上就挤满了人；工匠们正在将一段新旋梯接补到残破的旧楼梯上。
6.Switchback AP
恢复切换 AP
7.The switchback operation returns the ACTIVE RCSs to the ACTIVE state on their primary AP.
恢复切换操作将会使其主 AP 上的 ACTIVE RCS 回复为 ACTIVE 状态。
