|
backup system : 78 phrases in 19 subjects |
| Astronautics | 11 |
| Automated equipment | 1 |
| Aviation | 2 |
| Electricity | 1 |
| Electronics | 1 |
| Energy industry | 4 |
| General | 1 |
| Information technology | 2 |
| Medical appliances | 1 |
| Microsoft | 7 |
| Military | 9 |
| Nanotechnology | 1 |
| Oil / petroleum | 2 |
| Programming | 8 |
| Security systems | 2 |
| Solar power | 1 |
| Technology | 14 |
| Telecommunications | 9 |
| United Nations | 1 |