The vibration measurer for testing parasitic resonance must have good unidirectivity and sufficient frequency bandwidth .

测定寄生谐振的 振动 台要有良好的单向性和足够宽的频带。

The application of the vibration measurer in predictive maintenance confirms is certificated with an example .

通过实例证明了 测振 仪在预知性维修中的作用。