Use a 5v external power supply.
使用一个5V外部电源。
The special feature of the demonstrator is that the sensing elements have no need of an external power supply.
这种演示装置的特点在于，其传感器件不需要外部电源。
The earthquake destroyed the external power supply of the nuclear reactor.
地震摧毁了核反应堆的外部供电。
The motor for telescopic movement and the cutting motor are both connected with an external power supply.
所述的伸缩用电机以及切割电机均与外部电源连接。
The descriptor is used by USB devices to indicate how many connections it possesses and whether it has an external power supply.
这些描述被USB设备用来指示它拥有多少连接，以及是否有外部电源支持。
The descriptor is used by USB devices to indicate how many connections it possesses and whether it has an external power supply.
这些描述被USB设备用来指示它拥有多少连接，以及是否有外部电源支持。
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