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étincelle : 27 phrases in 9 subjects |
| Antennas and waveguides | 2 |
| Coal | 1 |
| Electronics | 6 |
| Energy industry | 3 |
| Information technology | 1 |
| Mechanic engineering | 7 |
| Metallurgy | 5 |
| Natural sciences | 1 |
| Transport | 1 |
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