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obsługa : 80 phrases in 11 subjects |
| Computer networks | 1 |
| Electric machinery | 1 |
| Electric traction | 1 |
| Electricity generation | 5 |
| Environment | 6 |
| Mathematics | 7 |
| Microsoft | 48 |
| Radio | 2 |
| Rail transport | 1 |
| Telecommunications | 4 |
| Telephony | 4 |
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