| 1. | Ocr optical character recognition character positioning 光学字符识别 |
| 2. | Ocr optical character recognition equipment ocr 光学字元阅读机 |
| 3. | Ocr optical character recognition equipment 光学字元阅读机 |
| 4. | Ocr optical character recognition inks 光学字符识别 |
| 5. | Ocr optical character recognition 光学扫描字符识别 |
| 6. | Ocr optical character recognition 光学字符办识 |
| 7. | Ocr optical character recognition 光学字符识别 |
| 8. | Micr ocr optical character recognition - method of coding machine readable characters micr and ocr for information processing 光学字符识别.第3部分:信息处理用机读字符 |