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| 自动焊机 | |||
| 自动电弧焊机 | |||
| 自动弧焊机; 自动电弧焊接机; 自动电焊机 | |||
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automatic arc welding machine : 12 phrases in 4 subjects |
| Metallurgy | 3 |
| Oil / petroleum | 1 |
| Shipbuilding | 2 |
| Technology | 6 |
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