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| liquid air rectification | |||
| air separation | |||
| разделение воздуха: 31 phrases in 13 subjects |
| Bridge construction | 1 |
| Construction | 2 |
| Energy industry | 7 |
| Gas processing plants | 2 |
| General | 1 |
| Gold mining | 1 |
| Makarov | 1 |
| Mining | 1 |
| Refrigeration | 9 |
| Road works | 1 |
| Sakhalin | 1 |
| Technology | 3 |
| Thermal engineering | 1 |