 |
| 空位: 299 phrases in 32 subjects |
| Astronautics | 2 |
| Automobiles | 2 |
| Aviation | 20 |
| Business | 2 |
| Chemistry | 2 |
| Corporate governance | 5 |
| Crystallography | 3 |
| Economy | 1 |
| Education | 2 |
| Electronics | 10 |
| Finances | 2 |
| General | 79 |
| Geology | 2 |
| Household appliances | 1 |
| Information technology | 1 |
| International Monetary Fund | 2 |
| Jet engines | 1 |
| Law | 2 |
| Mathematics | 2 |
| Medical | 4 |
| Metal science | 2 |
| Metallurgy | 6 |
| Microelectronics | 4 |
| Military | 6 |
| Missiles | 1 |
| Nanotechnology | 1 |
| Physics | 2 |
| Radio | 2 |
| Robotics | 1 |
| Shipbuilding | 2 |
| Silicate industry | 2 |
| Technology | 125 |