 |
| |||
| 覆盖焊缝 | |||
| cover joint: 25 phrases in 7 subjects |
| Architecture | 1 |
| Automobiles | 3 |
| Bridge construction | 1 |
| Construction | 1 |
| Economy | 1 |
| Shipbuilding | 1 |
| Technology | 17 |
|
| |||
| 覆盖焊缝 | |||
| cover joint: 25 phrases in 7 subjects |
| Architecture | 1 |
| Automobiles | 3 |
| Bridge construction | 1 |
| Construction | 1 |
| Economy | 1 |
| Shipbuilding | 1 |
| Technology | 17 |