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газообразный гелий |
helium gas : 29 phrases in 15 subjects |
Aviation | 1 |
Electronics | 1 |
Energy industry | 2 |
General | 2 |
Geology | 1 |
Makarov | 3 |
Metrology | 1 |
Military | 1 |
Nuclear and fusion power | 6 |
Oil and gas | 2 |
Oilfields | 1 |
Pipelines | 1 |
Refrigeration | 2 |
Technology | 4 |
Thermal engineering | 1 |