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| 铜焊; 硬焊; 钎焊; 硬焊料钎焊; 硬钎焊 | |||
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твёрдая пайка : 13 phrases in 4 subjects |
| Construction | 1 |
| Oil processing plants | 1 |
| Technology | 9 |
| Welding | 2 |
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