 |
| |||
| lightguide core | |||
| light guide core | |||
| light conductor core | |||
| сердцевина световода: 51 phrases in 3 subjects |
| Cables and cable production | 48 |
| Optics branch of physics | 2 |
| Transport | 1 |
|
| |||
| lightguide core | |||
| light guide core | |||
| light conductor core | |||
| сердцевина световода: 51 phrases in 3 subjects |
| Cables and cable production | 48 |
| Optics branch of physics | 2 |
| Transport | 1 |