ultrasonics

例句：

1. 1. Ultrasonic waves are used in medical imaging to create detailed images of internal organs.
   超声波用于医学成像，以创建内部器官的详细图像。
2. 2. The ultrasonic detector is capable of detecting the presence of objects within a certain range.
   超音波探测器能够检测到一定范围内的物体存在。
3. 3. Ultrasonic technology has revolutionized the way we communicate with each other.
   超音波技术已经改变了我们彼此交流的方式。