The use of ultrasonic pressure waves to vibrate an object to be cleaned while the object is immersed in a cleaning fluid. The process is used to produce a very clean surface and is used for medical equipment and jewellery.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。