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| характеристика распространения (e.g. oil pollution) | |||
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propagation pattern : 10 phrases in 6 subjects |
| Antennas and waveguides | 1 |
| Aviation | 1 |
| Electronics | 4 |
| Metallurgy | 1 |
| Microelectronics | 2 |
| Oil and gas technology | 1 |
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