This system uses a wireless modem with USB port based on SIM300 GPRS module and the MAS device of China Mobile.
基于原有的SIM300GPRS模块和移动公司的MAS设备，研发USB接口的无线调制解调器。
This system uses a wireless modem with USB port based on SIM300 GPRS module and the MAS device of China Mobile.
基于原有的SIM300GPRS模块和移动公司的MAS设备，研发USB接口的无线调制解调器。
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