 |
| sistema de segurança: 97 phrases in 27 subjects |
| Astronautics | 1 |
| Chemistry | 2 |
| Commerce | 1 |
| Communications | 11 |
| Construction | 1 |
| Data processing | 1 |
| Earth sciences | 1 |
| Economy | 1 |
| Electric machinery | 1 |
| Electronics | 4 |
| General | 14 |
| Health care | 3 |
| Immigration and citizenship | 1 |
| Information technology | 12 |
| Labor law | 2 |
| Law | 3 |
| Mechanic engineering | 5 |
| Microsoft | 1 |
| Municipal planning | 1 |
| Natural sciences | 1 |
| Nuclear physics | 8 |
| Obsolete / dated | 4 |
| Patents | 1 |
| Politics | 2 |
| Security systems | 2 |
| Social science | 3 |
| Transport | 10 |