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| oltrerosso | |||
| infrarosso; ultrarosso; IR (infrarosso livebetter.ru) | |||
| IR | |||
| инфракрасный: 195 phrases in 14 subjects |
| Astronomy | 2 |
| Chemical compounds | 1 |
| Chemistry | 13 |
| Electrical engineering | 1 |
| Electronics | 1 |
| Environment | 1 |
| General | 2 |
| Medical | 1 |
| Metallurgy | 5 |
| Microsoft | 5 |
| Military | 49 |
| Physics | 1 |
| Radio | 5 |
| Technology | 108 |