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| Angielski tezaurus | |||
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| The lowest flight level available for use above the transition altitude.; The lowest flight level available for use above the transition altitude | |||
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transition : 6 do fraz, 5 tematyki |
| Ekonomia | 2 |
| Microsoftu | 1 |
| Ochrona środowiska | 1 |
| Pospolicie | 1 |
| Transport | 1 |