Dot for dot: Reproduction of an already screened picture by photographing it as if it were fine line.
点对点：把已上网的图片当作幼线般的复制摄影。
The experimental results showed that round is the best dot shape for highlight, sharpness, and color reproduction;
实验表明：圆形网点在高调层次、清晰度、色彩方面的复制效果最好；
The main research methods are:(l) theory analysis: analyzing the reproduction law of smallest dot size based on graphing method and dot producing theory;
主要的研究方法：（1）理论分析：运用网点复制原理，借助作图分析法剖析最小网点的再现规律；
The main research methods are:(l) theory analysis: analyzing the reproduction law of smallest dot size based on graphing method and dot producing theory;
主要的研究方法：（1）理论分析：运用网点复制原理，借助作图分析法剖析最小网点的再现规律；
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