Ultrasound applications in various fields:
1. Engineering applications: underwater positioning and communication, underground resource exploration, etc.;
2. Biological applications: shearing macromolecules, biological engineering, and processing seeds;
3, Diagnostic applications: A type, B type, M type, D type, dual power and color Doppler;
4. Therapeutic applications: physical therapy, cancer treatment, surgery, extracorporeal lithotripsy, and dentistry, etc.