камерно-столбовая система разработки | |
goldmin. | room&pillar mining method; room-and-pillar mining |
mining. | room-and-pillar system; North-Staffordshire method; board-and-pillar method; board-and-pillar system; bord-and-pillar method |
O&G | pillar extraction drilling |
с закладками | |
data.prot. | bugged |
камерно-столбовая система разработки: 34 phrases in 3 subjects |
Geology | 1 |
Mining | 28 |
Technology | 5 |