| |||
| spectral measurement (igisheva); measurement (igisheva) | |||
| |||
| spectrographic studies | |||
|
спектрографическое исследование : 2 a las frases, 2 temas |
| Astronáutica | 1 |
| Tecnología | 1 |
| |||
| spectral measurement (igisheva); measurement (igisheva) | |||
| |||
| spectrographic studies | |||
|
спектрографическое исследование : 2 a las frases, 2 temas |
| Astronáutica | 1 |
| Tecnología | 1 |