 |
забой, закреплённый станковой крепью
| без закладки
| забой, закреплённый станковой крепью | |
| mining. | square-set stope |
| без закладок | |
| data.prot. | bug-free |
| |||
| square-set stope | |||
| забой, закреплённый станковой крепью: 2 phrases in 1 subject |
| Mining | 2 |
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