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第199行： − 波与波之间的干涉现象正是基于这一思想。当两个或多个波穿过同一空间时，每个点的净振幅是单个波振幅的总和。在某些情况下，例如在噪声消除耳机中，求和的变化幅度小于分量变化幅度；这称为相消干扰。在其他情况下，例如在线阵中，求和的变化幅度将比单独的任何分量都大；这称为构造性干扰。+
→Wave interference波的干涉
The phenomenon of interference between waves is based on this idea. When two or more waves traverse the same space, the net amplitude at each point is the sum of the amplitudes of the individual waves. In some cases, such as in noise-cancelling headphones, the summed variation has a smaller amplitude than the component variations; this is called destructive interference. In other cases, such as in a line array, the summed variation will have a bigger amplitude than any of the components individually; this is called constructive interference.
The phenomenon of interference between waves is based on this idea. When two or more waves traverse the same space, the net amplitude at each point is the sum of the amplitudes of the individual waves. In some cases, such as in noise-cancelling headphones, the summed variation has a smaller amplitude than the component variations; this is called destructive interference. In other cases, such as in a line array, the summed variation will have a bigger amplitude than any of the components individually; this is called constructive interference.
波与波之间的干涉现象正是基于这一思想。当两个或多个波穿过同一空间时，每个点的净振幅是单个波振幅的总和。在某些情况下，例如在噪声消除耳机中，求和的变化幅度小于分量变化幅度；这称为相消干扰。在其他情况下，例如在线阵中，求和的变化幅度将比单独的任何分量都大；这称为构造（相长？）干扰。