 |
| |||
| ground subsidence; surface damage; surface subsidence; subsidence | |||
| surface break | |||
| осадка поверхности: 14 phrases in 9 subjects |
| Communications | 1 |
| Ecology | 1 |
| Geology | 1 |
| Hydraulic engineering | 1 |
| Hydrology | 3 |
| Makarov | 4 |
| Mechanic engineering | 1 |
| Military | 1 |
| Water resources | 1 |