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| оптическое излучение; излучение в оптическом диапазоне | |||
| излучение света; излучение в видимом диапазоне спектра | |||
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rayonnement optique : 3 phrases in 3 subjects |
| Electronics | 1 |
| Technology | 1 |
| Радиоактивное излучение | 1 |
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