The system hardware is composed of upper and lower computer.
系统硬件由上位机和下位机两部分组成。
The system hardware was composed of upper computer and lower computer.
系统硬件由上位机和下位机两部分组成。
So the main task of MCU as lower computer is to communicate with GPRS.
单片机作为下位机主要任务是和GPRS进行通信。
So the main task of MCU as lower computer is to communicate with GPRS.
单片机作为下位机主要任务是和GPRS进行通信。
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