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| English thesaurus | |||
| |||
| SA (Alex Lilo) | |||
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Spectral : 53 phrases in 13 subjects |
| Astronautics | 1 |
| Aviation | 2 |
| Chemistry | 23 |
| Construction | 2 |
| Ecology | 1 |
| Electronics | 2 |
| Environment | 1 |
| General | 3 |
| ICAO | 1 |
| Information technology | 2 |
| Mathematics | 5 |
| Military | 4 |
| Technology | 6 |