ultrasonic emitter

例句：

1. 1.The ultrasonic emitter is used to scan the inside of the human body for any abnormalities.
   超声波发射器用于扫描人体内部，查找任何异常。
2. 2. The device uses ultrasonic waves to create a high-resolution image.
   该设备使用超声波波来创建高分辨率图像。
3. 3. The ultrasonic emitter was developed to improve medical imaging.
   超声波发射器被开发出来以改进医疗成像。