An experimental instrument is developed to directly demonstrate multi-frequency harmonic vibrations synthesis. 摘要研制了能够直观演示多倍频简谐振动合成的仪器。
The simplest form of wave motion consists of the combination of a transverse simple harmonic vibration and a uniform translation. 波动的最简单形式是横向简谐振动和匀速直线运动的组合。