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
Microwave assisted ultrasonic extraction
Combined microwave-ultrasound extraction
微波-超声波协同提取
microwave-ultrasonic assisted extraction
无噪声超声波清洗器
noiseless ultrasonic washer
行波超声波电动机
Traveling-wave Ultrasonic Motor
traveling wave ultrasonic motor
行波超声波电机
traveling wave ultrasonic motor
Traveling-wave Ultrasonic Motor
traveling wave type ultrasonic motor
Traveling-wave type ultrasonic motor
circuits improvement
RTWUSM