近些年来,西方国家各种赝品泛滥成灾。从钞票到文物、艺术作品,从文件到档案无一不能伪造,造成巨大经济损失。为了对付赝品,各种反赝品的新技术便应运而生。六十年代前,确定文件真伪主要通过对笔迹或对打字机的鉴定。而今已广泛采用更先进的 In recent years, various counterfeits in the western countries have been flooded. From banknotes to artefacts, works of art, from file to file can all be forged, resulting in huge economic losses. In order to deal with counterfeits, a variety of anti-counterfeit new technologies came into being. Before the sixties, to determine the authenticity of the document mainly through the handwriting or typewriter identification. Now more widely adopted more advanced