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| |||
| proportional counter | |||
| proportional counter (tube) | |||
| proportional counting assembly (counter tube 4- counting assembly) | |||
| proportional counter tube; proportional GM-counter; proportional tube | |||
| Proportionalzähler: 9 phrases in 5 subjects |
| Environment | 1 |
| Medical | 1 |
| Natural sciences | 1 |
| Nuclear physics | 1 |
| Радиоактивное излучение | 5 |