收发 机 : 300 phrase in 31 subjects |
Agriculture | 5 |
Air defense | 17 |
Architecture | 1 |
Automobiles | 5 |
Aviation | 32 |
Business | 6 |
Communications | 3 |
Construction | 1 |
Earth sciences | 4 |
Electronics | 75 |
General | 14 |
Geophysics | 6 |
Hydroelectric power stations | 2 |
Information technology | 8 |
International trade | 1 |
Management | 1 |
Mathematics | 1 |
Nuclear and fusion power | 1 |
Oil / petroleum | 1 |
Project management | 3 |
Radio | 4 |
Rail transport | 1 |
Refrigeration | 2 |
Remote sensing | 2 |
Shipbuilding | 2 |
Space | 29 |
Sports | 2 |
Technology | 51 |
Telecommunications | 16 |
United Nations | 3 |
United States | 1 |