如图所示实线表示某一时刻两个相干波源s1s2�出的波的波峰位置 虚线表示波谷位置 则图中ab两点再经过半个�期时其中 点为振动减弱 Template




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tomski如图所示实线表示某一时刻两个相干波源s1s2�出的波的波峰位置 虚线表示波谷位置 则图中ab两点再经过半个�期时其中 coloring