微缩文字技术是邮票防伪方式之一。它是用极小的文字或字母组成线条,印在票图的某个部位,只有在高倍放大镜或显微镜下才能现出“原形”。微缩文字技术应用于普通邮票防伪是从普31开始的(参见020640、020918)。经过对全套4组9种邮票的研究,发现普31微缩文字的规律如下(微缩文字的位置详见图1-图9)。 Micro-text technology is one of stamp security methods. It is a very small line of text or letters, printed on a certain part of the ticket map, only under the magnifying glass or microscope to show “prototype ”. The application of miniature text technology to ordinary stamps is beginning with P31 (see 020640, 020918). After studying the full set of 9 stamps in 4 groups, it was found that the general rules for the 31 miniatures are as follows (see Figure 1-9 for the location of the miniature characters).