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pinhole : 25 phrases in 10 subjects |
| Antennas and waveguides | 1 |
| Chemistry | 2 |
| Earth sciences | 2 |
| Food industry | 1 |
| Metallurgy | 9 |
| Natural sciences | 2 |
| Nuclear physics | 5 |
| Physical sciences | 1 |
| Remote sensing | 1 |
| Радиоактивное излучение | 1 |
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