 |
| operation cost: 34 phrases in 21 subjects |
| Accounting | 2 |
| Astronautics | 2 |
| Automobiles | 1 |
| Caspian | 1 |
| Construction | 3 |
| Drilling | 1 |
| Economy | 1 |
| Electronics | 2 |
| Energy system | 5 |
| General | 2 |
| Military | 2 |
| Mining | 1 |
| Nautical | 1 |
| Oil / petroleum | 1 |
| Quality control and standards | 2 |
| Road works | 1 |
| SAP | 1 |
| Software | 1 |
| Technology | 1 |
| Transport | 1 |
| Water resources | 2 |