ultrasonic CT超声波CTultrasonicadj.超声波的ultrasonic frequency超声波频率,超声频,超音频,超声频率ultrasonic tecnnique超声ultrasonic detecting超声检测ultrasonic inspector超声波探伤器ultrasonic converter超声波变换器ultrasonic endoscope超声内镜ultrasonic aided EDM电火花Ultrasonic Wire Bond超声契键合ultrasonic technique超声技术ultrasonic parameter声学参数

1. However, ultrasonic checks showed cracks in the seams.
   但是超声波检查，表明焊缝还有裂纹。
2. Standing wave LUM is the mainstream of the research of the LUM.
   驻波型直线电机是直线型超声波电机发展的主流。