电力系统的电压不稳定现象正受到越来越多的关注。
The unstable voltage phenomena of power systems are suffering increasing concerns nowadays.
可选带电池，用市电输入电源，适合各国电网及电压不稳地区。
It can select battery, electric supply input power, it is suitable for most countries electric net and pressure.
可适用于任何电压不稳定的场所，确保你的用电设备正常运行。
Voltage instability applied to any place, to ensure the normal operation of your electrical equipment.
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