有关波在传输中的一些程序，主要是声波的传播特点。画图注意问题-For some waves in the transmission process, mainly acoustic wave propagation characteristics. Drawing attention to the problem

关于声波传播过程中各个网线的布置规律及技巧的c语言程序-About the wave propagation process in all of the network cable layout rules and techniques of the c language program