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counter tube : 358 phrases in 11 subjects |
Earth sciences | 15 |
Electronics | 22 |
General | 1 |
High energy physics | 8 |
Measuring instruments | 27 |
Medical appliances | 2 |
Natural sciences | 1 |
Nuclear physics | 40 |
Technology | 4 |
Vacuum tubes | 5 |
Радиоактивное излучение | 233 |