| |||
frequency modulation/amplitude modulation | |||
FM/AM | |||
| |||
frequency modulation-amplitude modulation | |||
frequency modulation/ amplitude modulation | |||
| |||
AM-FM |
调频调幅 : 46 phrases in 11 subjects |
Advertising | 2 |
Air defense | 13 |
Artificial intelligence | 1 |
Aviation | 1 |
Earth sciences | 3 |
Electronics | 12 |
Geophysics | 6 |
Radio | 1 |
Space | 2 |
Technology | 4 |
United Nations | 1 |