| |||
| unstratified | |||
|
нестратифицированный : 10 phrases in 7 subjects |
| Gold mining | 4 |
| Hydrology | 1 |
| Information technology | 1 |
| Makarov | 1 |
| Oceanography & oceanology | 1 |
| Oil and gas technology | 1 |
| Technology | 1 |
| |||
| unstratified | |||
|
нестратифицированный : 10 phrases in 7 subjects |
| Gold mining | 4 |
| Hydrology | 1 |
| Information technology | 1 |
| Makarov | 1 |
| Oceanography & oceanology | 1 |
| Oil and gas technology | 1 |
| Technology | 1 |