 |
| |||
| optically variable (I. Havkin) | |||
| оптически переменная: 18 phrases in 10 subjects |
| Astronautics | 1 |
| Makarov | 1 |
| Mass media | 5 |
| Optics branch of physics | 2 |
| Polygraphy | 2 |
| Quantum electronics | 1 |
| Spectroscopy | 1 |
| Technology | 3 |
| Telecommunications | 1 |
| Weapons and gunsmithing | 1 |