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obszar E jonosfery; rejon E jonosfery | |||
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warstwa E sporadyczna; warstwa EŁBS | |||
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warstwa E normalna |
camada E: 15 phrases in 10 subjects |
Chemistry | 1 |
Economy | 1 |
Electric motors | 2 |
Electric traction | 1 |
Environment | 2 |
General | 1 |
Nuclear physics | 1 |
Politics | 1 |
Radio | 3 |
Radiology | 2 |