外国政府机关和跨国公司常因内部雇员将机密文件偷出复印而泄露大量的情报,为了防止这类事情的发生,日本东京、大阪等地的化学公司以及其他企业联合组成了日本特洛伊工业公司,研制出一种可覆盖在机密文件上的薄膜片。当间谍把覆盖有膜片的文件放在复印机上复印时,其效果将会令他大失所望。 Foreign government agencies and multinational companies often leak large amounts of information because internal employees stole photocopies of confidential documents. To prevent this from happening, chemical companies in Japan, Tokyo, and Osaka, as well as other companies, formed the joint venture of Troy Industries of Japan, Developed a film covering the confidential documents. When spies put a film-covered document on a copier for copying, the effect would be disheartening to him.