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| 井筒; 井身; 平衡重井筒; 矿井的井筒; 地铁井筒 | |||
| 矿井 | |||
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ствол шахты : 18 phrases in 6 subjects |
| General | 5 |
| Geology | 2 |
| Mining | 6 |
| Missiles | 1 |
| Oilfields | 1 |
| Technology | 3 |
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