提供備轉容量：依據電網供需的變化來增加增外的供電。當備轉容量不足時，會在數分鐘到小時內，供應一定的電力並維持一段時間（半小時到數小時）。 Your browser isn’t supported any more. Update it to find the ideal YouTube practical experience and our newest capabilities. Learn more You are utilizing a browser that may not supported by Facebook, so we've redirected you to definitely a simpler Mo... https://nicks234llk6.activosblog.com/profile