P92钢的超声波检验  SUPERSONIC TESTING OF P92 STEEL

超生的超音速的超声波  UART

铝青铜的超声波检测  Ultrasonic test on albronze

脉冲超声波的非线性传播  Ultrasonic pulse nonlinear propagation

超声波测距精度的研究  Study on precision of ultrasonic ranging

超声波定位系统的设计  Design of ultrasonic positioning system

超声波波速  Ultrasonic wave velocity

超声波声场  ultrasonic field

超声波声时  ultrasonic flight- time

超声波声速  ultrasound velocity; Ultrasonic speed

超声波声速测量  Ultrasonic velocity measurement

超声波声速法  ultrasonic velocity test

超声波声速计  ultrasonic wave velocimeter

环形行波超声波电机  ring-type traveling-wave ultrasonic motor

微波-超声波  microwave-ultrasonic wave

微波-超声波联用  microwave-ultrasonic extraction

微波超声波提取  microwave ultrasonic extraction

微波－超声波提取  microwave-ultrasonic extraction; microwave-ultrasonic aided extraction

微波－超声波协同萃取  microwave-ultrasonic wave synergic extraction; Combined microwave-ultrasound extraction; Microwave assisted ultrasonic extraction