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| sistema ottico: 28 phrases in 13 subjects |
| Aviation | 1 |
| Communications | 2 |
| Cultural studies | 2 |
| Earth sciences | 5 |
| Electronics | 2 |
| General | 4 |
| Industry | 2 |
| Information technology | 3 |
| Medical | 1 |
| Metallurgy | 1 |
| Thermal Energy | 1 |
| Transport | 3 |
| Video recording | 1 |
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