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| участок спектра | |||
| спектральная область; область спектра | |||
| 光 谱区: 20 phrases in 6 subjects |
| Antennas and waveguides | 1 |
| Astronautics | 1 |
| Chemistry | 2 |
| General | 6 |
| Nanotechnology | 1 |
| Technology | 9 |
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