The USB electrical specifications describe the port driver circuit, electrical level of data transmission, code structure, bit synchronization and power distribution.

USB的电气特性反映了端口驱动电路、传输电平、编码结构、位同步处理及供电方式。

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The hardware design mainly includes signal detect circuit, electrical level translation circuit, microcontroller interface circuit, data communication circuit and so on.

在硬件电路设计方面完成了信号检测电路、电平平移电路、单片机接口电路以及数据通信等电路的设计。

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Haredware circuit mainly including microcontroller interface circuit, electrical source and control circuit, measure circuit.

硬件电路主要包括：单片机接口电路，电源及控制电路，测量电路。

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Such fibres are hard to manipulate, let alone wire into an electrical circuit.

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The gel is then connected into an electrical circuit and the current carries the molecules (which are electrically charged) along.

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The track itself is a sequence of closely packed rectangular metal frames, each of which can act as an independent electrical circuit.

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