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| underground mining | |||
| deep mining | |||
| deep-mined output; underground winning | |||
| подземная добыча: 22 phrases in 12 subjects |
| Construction | 1 |
| Environment | 1 |
| Gas processing plants | 1 |
| General | 5 |
| Geology | 1 |
| Gold mining | 3 |
| Law | 1 |
| Makarov | 1 |
| Mining | 3 |
| Production | 1 |
| Sakhalin | 1 |
| Technology | 3 |