 |
| |||
| почвоуступная выемка грунта (в отличие от bench-and-bench method) | |||
| bench- and -heading method: 7 phrases in 4 subjects |
| Construction | 1 |
| Military | 2 |
| Mining | 3 |
| Technology | 1 |
|
| |||
| почвоуступная выемка грунта (в отличие от bench-and-bench method) | |||
| bench- and -heading method: 7 phrases in 4 subjects |
| Construction | 1 |
| Military | 2 |
| Mining | 3 |
| Technology | 1 |