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| 氧乙炔焊割炬 | |||
| 氧乙炔焊枪 | |||
| 氧乙炔焊炬 | |||
| 氧气乙炔炬; 氧乙炔喷焊器; 氧乙炔炬; 氧乙炔火焰; 氧炔焊枪; 氧化炔焊枪 | |||
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| 氧乙炔焊炬 | |||
| oxyacetylene torch: 5 phrases in 2 subjects |
| Metallurgy | 4 |
| Technology | 1 |
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