 |
| |||
| infra-red | |||
| infrared spectrum | |||
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| thermal infrared region | |||
| инфракрасная часть спектра: 29 phrases in 9 subjects |
| Astronautics | 4 |
| Communications | 1 |
| Ecology | 2 |
| Military | 2 |
| Oil / petroleum | 1 |
| Optics branch of physics | 1 |
| Spectroscopy | 16 |
| Technology | 1 |
| Textile industry | 1 |