 |
| circuito chiuso: 104 phrases in 23 subjects |
| Agriculture | 4 |
| Automated equipment | 1 |
| Aviation | 1 |
| Chemistry | 3 |
| Communications | 15 |
| Computer numerical control | 2 |
| Earth sciences | 6 |
| Electronics | 14 |
| Environment | 3 |
| General | 1 |
| Hobbies and pastimes | 1 |
| Industry | 1 |
| Information technology | 1 |
| Labor law | 8 |
| Materials science | 1 |
| Mechanic engineering | 15 |
| Medical | 11 |
| Municipal planning | 3 |
| Natural sciences | 2 |
| Pharmacy and pharmacology | 1 |
| Radio | 1 |
| Transport | 7 |
| Waste management | 2 |