 |
| |||
| подэтаж; подготовленный забой; узкий забой | |||
| короткий забой | |||
| short wall: 5 phrases in 4 subjects |
| Building structures | 1 |
| Construction | 2 |
| Energy industry | 1 |
| Technology | 1 |
|
| |||
| подэтаж; подготовленный забой; узкий забой | |||
| короткий забой | |||
| short wall: 5 phrases in 4 subjects |
| Building structures | 1 |
| Construction | 2 |
| Energy industry | 1 |
| Technology | 1 |