back-up power supply 备用电源
back up power 后备电源 ; 备份电源 ; 备用电源 ; 备份权力
back-up power system 后备电源
memory back-up power source 备用记忆电源
Doubled Back-up Power Supply 双备份供电
automatic back-up power supply device 备用电源自投装置
power-driven back-up roller 动力驱动防弯压辊
Power back up system 备用电源系统
When the backup power is working, the RTC entres the mode of ultra low-power; while the system power is on again, the chip comes back to work ordinarily.
当使用备用电源(电池)供电时,时钟芯片工作在超低功耗模式下,当系统再次上电,时钟芯片又回到正常工作模式。
参考来源 - 内嵌电源管理的实时时钟芯片的研究与设计·2,447,543篇论文数据，部分数据来源于NoteExpress
Homes lacked back-up power generators.
家里也没有备用的发电机。
The project was saved when the computer switched to an emergency 10-minute back-up power source.
项目在计算机切换到一个可维持十分钟的紧急电源后被挽救了。
Application areas: communication base station back-up power, energy storage devices, energy storage power station.
应用领域：通信基站后备电源、储能设备、储能电站等。
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