- Longitudinal ultrasonic guide wave dispersion equation of inviscid liquid-filled pipe is analyzed theoretically.
从理论上得到了充非粘性液体管道中纵向超声导波的频散方程。
- However, Rayleigh Wave is the right way for the formation velocity by its frequency characteristic.
而瑞利面波的频散特性能较好地解决地表层速度。
