- the science and application of ultrasonic waves.；ultrasonic waves; ultrasound
noun: ultrasonics, plural noun: ultrasonics
- 1. the science and application of ultrasonic waves.
- ▪ ultrasonic waves; ultrasound the pattern of ultrasonics has so far remained elusive
- the science and application of ultrasonic waves.
...speed measurement of various types of thin-disc ultrasonic actuator, we attach the light-reflection plate at its rotor...three-phase-eccentric and three-phase symmetric thin-disc ultrasonic actuator which are designed in this text, the...
At the original design of the thin-disc ultrasonic actuator, the screw position is considered as... the vibration source of whole the thin-disc ultrasonic actuator, and the other three screws are only...
英文：ultrasonic (waves); supersonic (waves) 國語解釋：人耳所能聽到的聲波頻率在...