Flashing microtext that, when viewed with the unaided eye, appears to be part of the line design, bet under magnification is seen as a repeated pattern of words, codes or numbers.
通过使用
文字,来增加防伪特征。闪烁

文字,在没有使用放大镜
情况下,看到
只是一条线,而在使用放大镜观看时,可以看到连续重复
文字、编码
数字等。

、失谐程



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