水声传播衰减的射线理论传播衰减示意图，可绘制不同声源深度关于距离的声线传播图-Ray attenuation of sound propagation theory spread water attenuation diagram can be drawn in different source depth chart on sound propagation distance line

该代码描绘了线性声源和圆形活塞声源的三维波束图。-The source code depicts the linear and circular piston source of three-dimensional beam pattern.