A mobile location based system could arrange this for you.
而移动定位系统能为你作这样的安排。
A ultrasonic voice location system based on Single Chip Microcomputer is presented in this paper.
介绍了一种基于单片机控制的超声波语音测距系统。
A ultrasonic voice location system based on Single Chip Microcomputer is presented in this paper.
介绍了一种基于单片机控制的超声波语音测距系统。
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