超声波动测速计
ultrasonic fluctuation velocimeter
超声波声速测量
Ultrasonic velocity measurement
超声波速测定
measuring of ultrasonic velocity
超声波速度测量
supersonic velocity measurement
超声波速度-应力-温度关系
Ultrasonic velocity stress temperature relation
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
环形行波超声波电机
ring-type traveling-wave ultrasonic motor
微波-超声波
microwave-ultrasonic wave