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liczba | elementów
| element | |
| math. | елемент скупа; елемент |
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liczba : 37 phrases in 10 subjects |
| Economics | 2 |
| Electric motors | 5 |
| Lighting other than cinema | 2 |
| Mathematics | 15 |
| Metrology | 2 |
| Microsoft | 4 |
| Power electronics | 3 |
| Statistics | 1 |
| Transformers | 2 |
| Vacuum tubes | 1 |