ultrasonic clearing machine

例句：

1. 1. Ultrasonic wavesare used to diagnose heart disease.
   超声波用于诊断心脏病。
2. 2. The ultrasonic cleaner isvery effective at removing rust from metal surfaces.
   超声波清洁剂在去除金属表面锈迹方面非常有效。
3. 3. Ultrasonic welding is a method of joining materials usinghigh-frequency sound waves.
   超声波焊接是一种使用高频声波连接材料的方法。