elliptical vibration वाक्य
"elliptical vibration" हिंदी में elliptical vibration in a sentenceउदाहरण वाक्य
- Ultrasonic motors are a new kind of solid actuators that come into being since 1980 �� s , which use inverse piezoelectric effect of pzt to excite stator �� s elliptical vibration and produce driving power by frictional coupling