补码 : 101 phrase in 20 subjects |
Agriculture | 2 |
Air defense | 3 |
Architecture | 1 |
Automobiles | 1 |
Aviation | 1 |
Commerce | 1 |
Computers | 1 |
Construction | 1 |
Earth sciences | 1 |
Economy | 4 |
Electronics | 9 |
General | 4 |
Information technology | 12 |
Mathematics | 2 |
Metallurgy | 1 |
Multimedia | 1 |
Shipbuilding | 1 |
Space | 9 |
Technology | 34 |
Telecommunications | 12 |