![]() |
| |||
земной ток | |||
| |||
естественные земные токи | |||
| |||
токи естественного происхождения |
natural current: 15 phrases in 11 subjects |
Accounting | 1 |
Antennas and waveguides | 1 |
Cement | 1 |
Electricity | 2 |
Electrochemistry | 1 |
Geology | 2 |
Geophysics | 1 |
Mass media | 1 |
Mining | 1 |
Programming | 1 |
Technology | 3 |