... 电压电流特性曲线 volt-ampere characteristic curve 电压电流转换器 voltage current adapter 电压电路 voltage circuit ...
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VCA voltage current adapter 电压电流转换器
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The ac adapter (as it's more accurately known) simply converts the ac current from a wall outlet into low-voltage, low-amperage DC current that it provides via a USB port.
AC适配器(这是交流电源更准确的说法)只是把来自墙上插口的交流电转化为低伏特、低安培的直流电源，并通过USB接口充入手机。
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