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высокая активность |
haute activité : 20 phrases in 9 subjects |
Analytical chemistry | 2 |
Astronautics | 1 |
Chemistry | 2 |
Construction | 1 |
Fishery fishing industry | 1 |
Natural resourses and wildlife conservation | 2 |
Nuclear physics | 6 |
Physics | 1 |
Technology | 4 |