power-fail recovery

例句：

1. 1. During a power outage, the system automatically switched to backup power for power-fail recovery.
   在停电期间，系统会自动切换到备用电源进行电源故障恢复。
2. 2. The company's emergency response team was deployed to ensure timely power-fail recovery in case of an emergency.
   公司的应急响应团队被部署，以确保在紧急情况下能够及时进行电源故障恢复。
3. 3. The power-fail recovery process involves shutting down the main power supply and restoring it after a short delay.
   电源故障恢复过程包括关闭主要电源供应并在短暂延迟后恢复。