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| 锅炉内的 小烟管 | |||
| 焰管; 烟管; 烟道管; 小烟管; 火管; 加热管 | |||
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| 烟道管 | |||
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дымогарная труба : 14 phrases in 5 subjects |
| Electronics | 1 |
| General | 7 |
| Nautical | 1 |
| Oil processing plants | 1 |
| Technology | 4 |
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