| 释义 |
超声波chāoshēngbō超过人能听到的最高频(20000赫兹)的声波。超声波沿直线传播,有方向性,并能反射回来,对物体有破坏性。广泛应用在各技术部门。{ultrasound; ultrasonic wave; supersonic wave; sound wave of frequencies above the upper limit of human hearing (20,000 hertz). Ultrasonic waves spread in a straight line in one direction, can be reflected and can cause damage to things, widely used in various technical fields.} |