 |
| |||
| direct vision tube | |||
| direct-viewing tube; direct-vision tube | |||
| трубка прямого видения: 10 phrases in 5 subjects |
| Astronautics | 1 |
| Mass media | 1 |
| Military | 1 |
| Technology | 6 |
| Telecommunications | 1 |
|
| |||
| direct vision tube | |||
| direct-viewing tube; direct-vision tube | |||
| трубка прямого видения: 10 phrases in 5 subjects |
| Astronautics | 1 |
| Mass media | 1 |
| Military | 1 |
| Technology | 6 |
| Telecommunications | 1 |