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1·The backup battery should be replaced at least once per year.

每年应该至少更换一次备用电池。

2·Look for a Child unit that has a backup battery in case of power failure.

寻求一个儿童组表示，有一个备用电池，在案件的电力供应中断。

3·The advantages of lithium battery is to use for a long time, if not purchase a disadvantage is backup battery words can't added.

锂电池的优点是使用时间长，缺点是如果不购买备用电池的话不能随时补充。

4·Intelligent battery discharger is the instrument that can maintain and capacity test to battery, DC power and UPS backup battery.

智能蓄电池放电仪是专门对蓄电池组、直流电源、UPS后备电池进行维护及容量检测的仪器。

5·(Power outages, however, activate backup battery and safe mode, which means you can still perform tasks like unlocking a door manually).

(比如停电了。但是还有启动备用电池和安全模式的存在，这样你就可以继续你手上的活计了)。

6·Technical challenges remain, including integrating a leakproof backup battery into the device and miniaturising the FREE-D’s control electronics.

存在的技术难题还很多，包括将一个防漏电的备用电池集成到心泵内，还有缩小FREE-D电子元件的体积。

7·If there is an issue with the diesels, you have a battery backup.

如果柴油发电机也发生故障，你还有一个备用电池组。

8·Onboard battery-powered computer controls allow the kites to land themselves during extreme weather conditions, or if the tether is severed, and multiple motors provide a backup if one motor fails.

使用电池供电的电脑来控制使风筝飞行姿态，在极端天气条件下或者是系绳出现问题时通过电机来控制，同时配有多台电动机提供备用。

9·Germany sunshine under normal conditions in the static storage, battery backup work status, to prevent the user's knowledge, in no caused by mains power outage.

德国阳光蓄电池在正常情况下处于静态存放、备用工作状态，为防止用户在完全不知情的情况下，由于市电供电中断而造成成。

10·It combines a battery and inverter for portable electricity and backup power anytime.

它结合了电池和逆变器的便携式供电和备用电源随时。