P92钢的超声波检验
SUPERSONIC TESTING OF P92 STEEL
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
超声波声速测量
Ultrasonic velocity measurement
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