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| временной спектр | |||
| time spectrum: 20 phrases in 9 subjects |
| Analytical chemistry | 1 |
| Automated equipment | 1 |
| Chemistry | 2 |
| General | 1 |
| Geology | 1 |
| Makarov | 10 |
| Physics | 2 |
| Quantum electronics | 1 |
| Telecommunications | 1 |
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