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жидкий гелий (The chemical element helium exists in a liquid form only at the extremely low temperature of 4.15 °K or −269 °C.) | |||
жидкий гелий |
liquid helium : 21 phrases in 10 subjects |
Astronautics | 3 |
Aviation | 2 |
Cables and cable production | 1 |
Makarov | 4 |
Metrology | 3 |
Military | 1 |
Nanotechnology | 1 |
Physics | 1 |
Refrigeration | 2 |
Technology | 3 |