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| вентиляционная шахта | |||
| вентиляционный шахтный ствол; заборная шахта | |||
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风井 : 90 phrases in 12 subjects |
| Caspian | 1 |
| Construction | 3 |
| Drilling | 3 |
| Electronics | 12 |
| General | 27 |
| Geology | 4 |
| Gold mining | 1 |
| Military | 1 |
| Mining | 8 |
| Missiles | 3 |
| Oilfields | 2 |
| Technology | 25 |
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