如图所示两列振幅和波长都相同而传播方�相反的机械横波在相遇的某一时刻“突然 消失.设在这一时刻两波相遇的介质里有abc三个介质质点则 Template




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tomski如图所示两列振幅和波长都相同而传播方�相反的机械横波在相遇的某一时刻“突然 消失.设在这一时刻两波相遇的介质里有abc三个介质质点则 coloring