超声声速
Speed of sound
ultrasonic pulse velocity
velocity of ultrasonic sound
ultrasonic velocity
Ultrasonic sound velocity
超声声速测量
Ultrasonic velocity measurement
超声声速法
ultrasonic velocity method
超声声速与衰减
Ultrasonic velocity and attenuation
2m2m超声速风洞设计引导试验
tests for the 2m2m supersonic wind tunnel design
超、高超声速
Supersonic and Hypersonic
超声声空化
ultrasonic sonic-vacating
超声声像图特征
Ultrasonographic features
超声声像图综合积分值
Dimensional ultrasound score
超声速边界层
supersonic boundary layer