本戴制版法：用机械方法把网点或纹理图案转移到线条画上以产生明暗色调的效果。
Benday process: a method of mechanically transferring dots or texture patterns to produce tonal value in line drawings.
任何干涉技术都得结合两道波，得出强弱的振幅或明暗的图案。
Any kind of interferometry involves combining two waves, resulting in a pattern of high and low amplitudes, or light and darkness.
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