并对超声波发射接收电路的硬件结构和工作原理做了较详细的说明，给出了数据处理系统程序框图和部分程序。

Explicated the structure and principle of work of ultrasonic launching and receiving circuit, presented the program frame and part program of the date processing.

youdao

并对超声波发射接收电路的硬件结构和工作原理做了较详细的说明，给出了数据处理系统程序框图和部分程序。

Explicated the structure and principle of work of ultrasonic launching and receiving circuit, presented the program frame and part program of the date processing.

youdao