 |
| |||
| infra-red radiation sensing | |||
| infrared detection | |||
| infrared radiation sensing (ABelonogov) | |||
| обнаружение инфракрасного излучения: 19 phrases in 7 subjects |
| Artillery | 1 |
| Astronautics | 8 |
| Caspian | 2 |
| Energy industry | 1 |
| Military | 3 |
| Security systems | 1 |
| Weapons and gunsmithing | 3 |