光符阅读机 optical character reader

光学字符识别机 optical character recognition device

光符阅览机 optical character reader

光学符号阅读机 optical mark reader

光字符阅读机 Optical Character Reader

光符浏览机 optical character reader

先进光学符号阅读机 Advanced Optical Character Reader

光符号识别机 optical character recognition machine

磁光字符阅读机 magnetic optical-character reader

先进光学字符阅读机 advanced optical character reader