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.
通过使用微缩文字,来伪特征。闪烁的微缩文字,在没有使用放大镜的情况下,看到的只是一条线,在使用放大镜观看时,可以看到连续重复的文字、编码及数字等。