 |
| |||
| flint; flint optical glass; optical flint; optical flint glass | |||
| |||
| flint glass; flint-glass; pebble; silica; silex | |||
|
flint : 15 a las frases, 5 temas |
| Construcción | 1 |
| Industria | 6 |
| Medicina | 5 |
| Química | 2 |
| Tecnología | 1 |
|
| |||
| flint; flint optical glass; optical flint; optical flint glass | |||
| |||
| flint glass; flint-glass; pebble; silica; silex | |||
|
flint : 15 a las frases, 5 temas |
| Construcción | 1 |
| Industria | 6 |
| Medicina | 5 |
| Química | 2 |
| Tecnología | 1 |