振动能阶
3.An electrical device consisting basically of a vibrating conductor interrupting a current.
6.To realize mode degeneracy its 1st torsional-vibration mode and its longitudinal-vibration mode caused by 1st radial-vibration are used in designing of this kind of motor.
9.The Oscillation of Second Order Half - linear Ordinary Dif ferential Equations
10.In the first chapter,the sympletic scheme of Four-oder Rod Vibration equationis derived.

