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| optical computer: 29 phrases in 13 subjects |
| Astronautics | 1 |
| Computers | 2 |
| Electronics | 6 |
| General | 1 |
| Geophysics | 1 |
| Information technology | 4 |
| Internet | 1 |
| Medical appliances | 1 |
| Meteorology | 1 |
| Military | 2 |
| Nanotechnology | 2 |
| Technology | 6 |
| Trade classification | 1 |
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