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远程导 航 : 64 phrases in 13 subjects |
Air defense | 7 |
Astronautics | 1 |
Aviation | 17 |
Cartography | 1 |
Earth sciences | 2 |
Electronics | 2 |
General | 5 |
Geophysics | 2 |
Navigation | 1 |
Oil / petroleum | 1 |
Shipbuilding | 4 |
Space | 10 |
Technology | 11 |