 |
|
error-indication : 33 phrases in 16 subjects |
| Air defense | 1 |
| Automated equipment | 1 |
| Automobiles | 2 |
| Bridge construction | 1 |
| Computers | 1 |
| Firefighting and fire-control systems | 1 |
| Makarov | 1 |
| Metrology | 2 |
| Nautical | 1 |
| Non-destructive testing | 4 |
| Quality control and standards | 3 |
| Radioengineering | 1 |
| Rail transport | 1 |
| Space | 2 |
| Technology | 8 |
| Telecommunications | 3 |