气体 保护 焊 : 177 phrases in 19 subjects |
Automobiles | 12 |
Aviation | 8 |
Chemistry | 11 |
Compressors | 5 |
Construction | 1 |
Electric machinery | 6 |
Electronics | 7 |
General | 6 |
Metallurgy | 36 |
Nautical | 7 |
Oil / petroleum | 11 |
Pipelines | 1 |
Plastics | 1 |
Rail transport | 5 |
Shipbuilding | 4 |
Space | 8 |
Steel production | 2 |
Technology | 44 |
Wind Energy | 2 |