 |
| 对头焊接: 51 phrases in 13 subjects |
| Architecture | 1 |
| Automobiles | 1 |
| Aviation | 1 |
| Bridge construction | 2 |
| Chemistry | 1 |
| Compressors | 1 |
| Drilling | 1 |
| Metallurgy | 8 |
| Oil / petroleum | 3 |
| Plastics | 4 |
| Space | 1 |
| Steel production | 1 |
| Technology | 26 |
|
| 对头焊接: 51 phrases in 13 subjects |
| Architecture | 1 |
| Automobiles | 1 |
| Aviation | 1 |
| Bridge construction | 2 |
| Chemistry | 1 |
| Compressors | 1 |
| Drilling | 1 |
| Metallurgy | 8 |
| Oil / petroleum | 3 |
| Plastics | 4 |
| Space | 1 |
| Steel production | 1 |
| Technology | 26 |