| |||
парные струны | |||
| |||
с парными струнами | |||
| |||
двухрядная колонна |
double strings : 31 phrases in 10 subjects |
Construction | 2 |
Drilling | 2 |
Electronics | 1 |
Energy industry | 3 |
General | 1 |
Oil / petroleum | 3 |
Oil and gas technology | 1 |
Oilfields | 1 |
Programming | 12 |
Technology | 5 |