| |||
magnetic constant | |||
permeability of vacuum | |||
vacuum permeability |
проницаемость вакуума : 20 phrases in 9 subjects |
Antennas and waveguides | 1 |
Electrical engineering | 1 |
Electronics | 5 |
General | 2 |
Makarov | 6 |
Metrology | 1 |
Physics | 1 |
Technology | 2 |
Telecommunications | 1 |