The theory has its origins in an effort to understand the strong force, the dualresonance model (1969).
弦理论最初是为了解释强相互作用力,也就是二次共振模型(1969)。
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Its natural frequency falls into two parts when the loads exerted on generator rotor are asymmetrical. Dualresonance phenomenon appears based on the former single frequency vibration.
The active filter based on dual DSP can improve the performance of filtering, restrain the resonance between LC circuit and electrical network, and improve dynamic performance of compensation system.