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range-azimuth navigation system |
导航制 : 202 phrases in 15 subjects |
Air defense | 8 |
Astronautics | 1 |
Automobiles | 1 |
Aviation | 68 |
Biophysics | 1 |
Earth sciences | 2 |
Electronics | 32 |
General | 8 |
Information technology | 1 |
Life sciences | 1 |
Navigation | 2 |
Radio | 1 |
Space | 57 |
Technology | 17 |
United States | 2 |