line-of -sight : 134 phrases in 17 subjects |
Air defense | 8 |
Artificial intelligence | 1 |
Aviation | 16 |
Business | 2 |
Communications | 1 |
Desert science | 1 |
Earth sciences | 2 |
Electronics | 25 |
General | 1 |
Information technology | 4 |
Military | 2 |
Nautical | 1 |
Plastics | 2 |
Space | 34 |
Technology | 26 |
Telecommunications | 7 |
United Nations | 1 |