两列简谐横波的振幅都是20cm传播速度大小相同.实线波的�率为2hz沿x轴正方�传播虚线波沿x轴负方�传播.某时刻两列波在如图所示区域 Template




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tomski两列简谐横波的振幅都是20cm传播速度大小相同.实线波的�率为2hz沿x轴正方�传播虚线波沿x轴负方�传播.某时刻两列波在如图所示区域 coloring