 |
| |||
| chamber-and-pillar; board-and-pillar; pillar-and-room | |||
| bord-and-pillar | |||
| room-and-pillar | |||
| камерно-столбовой: 88 phrases, 8 sujets |
| Exploitation minière | 64 |
| Extraction d'extr. | 3 |
| Géologie | 5 |
| Industrie de l'industr. | 1 |
| Makarov | 1 |
| Pétrole / pétrole | 2 |
| Pétrole et gaz | 1 |
| Technologie | 11 |