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| распространение света | |||
| рассеивание света (LINLINE) | |||
| распространение световых волн | |||
| light propagation: 7 phrases in 7 subjects |
| Cables and cable production | 1 |
| Construction | 1 |
| Household appliances | 1 |
| Lighting other than cinema | 1 |
| Mathematics | 1 |
| Technology | 1 |
| Telecommunications | 1 |