الإشعاع الحرارى: 77 phrases in 14 subjects |
Antennas and waveguides | 18 |
Electronics | 1 |
Environment | 2 |
Lighting other than cinema | 11 |
Medical | 1 |
Name of organization | 1 |
Nuclear physics | 11 |
Physics | 1 |
Radio | 1 |
Radiology | 10 |
Remote sensing | 13 |
Thermal Energy | 1 |
United Nations | 3 |
Vacuum tubes | 3 |