连续色调由渐变密度构成的不同色调层次的图像。
Continuous tone a image in which tonal gradation is produced by gradually changes of density.
连续色调：由渐变密度构成的不同色调层次的图像。
Continuous tone: a image in which tonal gradation is produced by gradually changes of density.
同样渐变也能够被察觉，比如前苏维埃阵营国家的灯光密度在苏联解体之后出现了缓慢的增长。
Gradual changes can be discerned, too, like when the intensity of Soviet-bloc countries' nighttime lights slowly increased after the USSR's fall.
同样渐变也能够被察觉，比如前苏维埃阵营国家的灯光密度在苏联解体之后出现了缓慢的增长。
Gradual changes can be discerned, too, like when the intensity of Soviet-bloc countries' nighttime lights slowly increased after the USSR's fall.
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