The infuence on resonance frequencies of longitudinal-torsional ultrasonic motor exerted by prestress is studied.
The infuence on resonance frequencies of longitudinal-torsional ultrasonic motor exerted by prestress is studied.
摘要研究了预压力对超声马达共振频率的影响。
The infuence on resonance frequencies of longitudinal-torsional ultrasonic motor exerted by prestress is studied.
摘要研究了预压力对超声马达共振频率的影响。