Перегляд Volume 10, Issue 4 по темі
Зараз показуються 65-81 з 81
| Тема |
|---|
| quarry of the first stage [1] |
| recycling [1] |
| reduction of the number of accidents and injuries [1] |
| regularities [1] |
| respirator [1] |
| schematics [1] |
| scheme [1] |
| steep excavation layer [1] |
| stopes [1] |
| subsidence of the land surface [1] |
| sulfur content [1] |
| sustainability [1] |
| technogenic deposits [1] |
| technology [1] |
| tool [1] |
| tungsten [1] |
| underground coal combustion [1] |