控制线 : 299 phrases in 25 subjects |
Antennas and waveguides | 3 |
Astronautics | 3 |
Automated equipment | 2 |
Aviation | 8 |
Cartography | 1 |
Computer networks | 3 |
Computers | 5 |
Construction | 1 |
Economy | 1 |
Education | 1 |
Electrical engineering | 1 |
Electronics | 30 |
General | 80 |
Information technology | 7 |
Mathematics | 2 |
Metallurgy | 1 |
Military | 11 |
Missiles | 7 |
Nautical | 2 |
Oil and gas | 1 |
Photography | 1 |
Radio | 5 |
Shipbuilding | 1 |
Statistics | 2 |
Technology | 120 |