 |
| |||
| field welding | |||
| 工地焊: 15 phrases in 5 subjects |
| Electric machinery | 1 |
| Hydroelectric power stations | 2 |
| Metallurgy | 5 |
| Oil / petroleum | 1 |
| Technology | 6 |
|
| |||
| field welding | |||
| 工地焊: 15 phrases in 5 subjects |
| Electric machinery | 1 |
| Hydroelectric power stations | 2 |
| Metallurgy | 5 |
| Oil / petroleum | 1 |
| Technology | 6 |