 |
| |||
| нижнее положение сварного шва | |||
| flat welding position: 3 phrases in 3 subjects |
| Electrical engineering | 1 |
| Materials science | 1 |
| Technology | 1 |
|
| |||
| нижнее положение сварного шва | |||
| flat welding position: 3 phrases in 3 subjects |
| Electrical engineering | 1 |
| Materials science | 1 |
| Technology | 1 |