3-D声波波动方程
3-D acoustic wave equation
标量声波波动方程
scalar acoustic wave equation
超声波声速测量
Ultrasonic velocity measurement
超声波声速计
ultrasonic wave velocimeter
短脉波声波回迹鉴定技术
acoustic short-pulse echo classification technique {ASRAPS
全波声波测井
full-wave acoustic logging
全声波波动方程
full acoustic wave equation
声波波节
node of the acoustic wave