 |
| |||
| undisturbed sample; undisturbed salvage | |||
| |||
| undisturbed specimen | |||
| undisturbed sample | |||
| образец с ненарушенной структурой: 8 phrases in 7 subjects |
| Construction | 1 |
| Electrical engineering | 1 |
| Hydraulic engineering | 1 |
| Natural resourses and wildlife conservation | 1 |
| Road works | 2 |
| Seismology | 1 |
| Technology | 1 |