Ab两列简谐横波均沿x轴正�传播某时刻的他们的波形分别如图甲乙所示经过时间tt小于a波的�期ta这两列简谐横波的波形分别变为图丙 Template




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tomskiab两列简谐横波均沿x轴正�传播某时刻的他们的波形分别如图甲乙所示经过时间tt小于a波的�期ta这两列简谐横波的波形分别变为图丙 coloring