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| 凸面焊 (缝) | |||
| 凸面焊缝 | |||
| 凸形焊缝; 加强焊缝 | |||
| 凸形角焊缝; 加固填角焊 | |||
| 凸面焊; 凸焊焊缝 | |||
| convex weld: 6 phrases in 3 subjects |
| Architecture | 1 |
| Metallurgy | 1 |
| Technology | 4 |
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