 |
| rock- fill: 70 phrases in 17 subjects |
| American usage, not spelling | 1 |
| Construction | 20 |
| Drilling | 1 |
| Electronics | 15 |
| Fish farming pisciculture | 1 |
| General | 1 |
| Geology | 1 |
| Hydraulic engineering | 3 |
| Hydraulics | 1 |
| Hydroelectric power stations | 1 |
| Makarov | 2 |
| Military | 1 |
| Mining | 2 |
| Oil and gas | 1 |
| Oilfields | 2 |
| Road works | 1 |
| Technology | 16 |