| |||
| техника взрывного дела | |||
|
explosives technique : 11 phrases in 4 subjects |
| Metallurgy | 2 |
| Military | 7 |
| Oil / petroleum | 1 |
| Technology | 1 |
| |||
| техника взрывного дела | |||
|
explosives technique : 11 phrases in 4 subjects |
| Metallurgy | 2 |
| Military | 7 |
| Oil / petroleum | 1 |
| Technology | 1 |