 |
| |||
| 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 |