1、
Double-tone half-tone: A colour plate printed slightly out of register to create a duotone effect.
双重半色调：用一颜色印版，作稍为不准的套印，从而产生双色调的效果。
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2、
Double-tone half-tone : A colour plate printed slightly out of register to create a duotone effect.
双重 半色调: 用一颜色印版,作稍为不准的套印,从而产生双色调的效果.
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