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low-visibility conditions; poor visibility conditions | |||
obscured conditions |
условия плохой видимости : 18 phrases in 8 subjects |
Airports and air traffic control | 1 |
Astronautics | 2 |
Aviation | 6 |
Electronics | 2 |
Military | 4 |
Nanotechnology | 1 |
Nautical | 1 |
Technology | 1 |