 |
| interlock system: 33 phrases in 16 subjects |
| Aeronautics | 1 |
| Automated equipment | 1 |
| Automatic control | 4 |
| Automobiles | 9 |
| Aviation | 4 |
| Communications | 1 |
| Electrical engineering | 1 |
| Electronics | 2 |
| Energy industry | 1 |
| Forestry | 1 |
| Makarov | 1 |
| Mass media | 1 |
| Nuclear physics | 1 |
| Technology | 2 |
| Tengiz | 1 |
| Transport | 2 |