水声声强
underwater noise intensity
B型超声仪
B-mode ultrasonic apparatus
彩色多普勒超声仪
The colour Dopplerul trasonography
参考声强
reference sound intensity
舱音背景声声特征
back-ground cockpit sound characteristic
超声强化
ultrasound enhancement
ultrasonic intensification
ultrasonic strengthen
ultrasonic enhancement
ultrasonic-assisted method
ultrasound-enhanced
超声强化提取
ultrasonic wave enhanced extraction
超声强化亚临界水萃取
Ultrasound-assisted subcritical water extraction
超声声空化
ultrasonic sonic-vacating
超声声速
velocity of ultrasonic sound
ultrasonic velocity
Ultrasonic sound velocity
ultrasonic pulse velocity
Speed of sound
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