线性调频 : 96 phrases in 14 subjects |
Air defense | 34 |
Aviation | 3 |
Communications | 2 |
Computer networks | 1 |
Electronics | 12 |
General | 3 |
Geophysics | 3 |
Information technology | 4 |
Oil / petroleum | 1 |
Piezoelectric crystals | 1 |
Shipbuilding | 1 |
Space | 26 |
Technology | 3 |
Telecommunications | 2 |