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,来增加防伪特征。闪烁微缩文字,在没有使用
情况下,看到
一条线,
在使用
观看时,可以看到连续重复
文字、编码及数字等。