超声波

• Standard test method for leaks using ultrasonics
  用超声波检漏的标准试验方法
• Calibration specification for ultrasonic thickness instruments
  超声波测厚仪校准规范
• Method of ultrasonic inspection for cast steel rolls
  铸钢轧辊超声波探伤方法
• Designing on ultrasonic trademark webbing cutter
  超声波商标织带切片机的设计
• Electroplating , rectifier , ultrasonic cleaner ,
  电镀电源，超声波清洗，保险箱
• Ulreasonic examination of large forged crankshafts
  大型锻造曲轴的超声波检验
• Wavelet analysis of ultrasonic testing signals in rock
  岩石超声波检测信号的小波分析
• Forged and rolled steel bars - method for ultrasonic examination
  锻轧钢棒超声波检验方
• Study on ultrasonic extraction of wheat germ protein
  超声波法提取小麦胚芽蛋白的研究
• Medical blood tester and ultrasound scanner pcba
  -医疗产品血液测量仪和超声波扫描仪