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| распространение в пределах оптической видимости | |||
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光传播 : 17 phrases in 7 subjects |
| Antennas and waveguides | 1 |
| Astronomy | 3 |
| Electronics | 1 |
| General | 3 |
| Lighting other than cinema | 1 |
| Technology | 7 |
| Telecommunications | 1 |
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