 |
| |||
| уголь, добытый подземным способом | |||
| underground coal: 14 phrases in 5 subjects |
| Coal | 1 |
| Energy industry | 1 |
| Gas processing plants | 9 |
| Oil and gas technology | 1 |
| Technology | 2 |
|
| |||
| уголь, добытый подземным способом | |||
| underground coal: 14 phrases in 5 subjects |
| Coal | 1 |
| Energy industry | 1 |
| Gas processing plants | 9 |
| Oil and gas technology | 1 |
| Technology | 2 |