射 线 束 : 96 phrases in 16 subjects |
Agriculture | 4 |
Air defense | 5 |
Communications | 1 |
Electronics | 10 |
General | 6 |
Geophysics | 2 |
Information technology | 3 |
Metallurgy | 23 |
Oil / petroleum | 1 |
Reproductive biology | 1 |
Selective breeding | 1 |
Shipbuilding | 2 |
Slang | 1 |
Space | 6 |
Sports | 1 |
Technology | 29 |