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它结合了电池和逆变器的便携式供电和备用电源随时。
It combines a battery and inverter for portable electricity and backup power anytime.
youdao
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电池作为电源，适合于便携式显示。
The battery takes the power source, suits to the portable demonstration.
youdao
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电池作为电源，适合于便携式显示。
The battery takes the power source, suits to the portable demonstration.
youdao