 |
| |||
| composition of the ground; soil structure | |||
| soil constitution | |||
| formation of country | |||
| bottom composition | |||
| состав грунта: 45 phrases in 9 subjects |
| Bridge construction | 1 |
| Construction | 13 |
| Hydraulic engineering | 6 |
| Hydrology | 1 |
| Makarov | 2 |
| Mining | 2 |
| Road works | 9 |
| Seismology | 2 |
| Technology | 9 |