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| absorption de raies | |||
| facteur d'absorption spectrale (характеристика) | |||
| absorption spectrale | |||
| спектральное поглощение: 6 phrases in 5 subjects |
| Astronautics | 2 |
| Aviation | 1 |
| Chemistry | 1 |
| Electronics | 1 |
| Technology | 1 |
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