 |
| |||
| 振幅-频率调制 | |||
| 振幅一频率调制 | |||
| |||
| 振幅/频率调制 | |||
| |||
| 振幅频率调制 | |||
| amplitude-frequency modulation: 25 phrases in 8 subjects |
| Air defense | 2 |
| Aviation | 1 |
| Earth sciences | 2 |
| Electronics | 9 |
| Geophysics | 6 |
| Radio | 1 |
| Space | 1 |
| Technology | 3 |
|
| |||
| 振幅-频率调制 | |||
| 振幅一频率调制 | |||
| |||
| 振幅/频率调制 | |||
| |||
| 振幅频率调制 | |||
| amplitude-frequency modulation: 25 phrases in 8 subjects |
| Air defense | 2 |
| Aviation | 1 |
| Earth sciences | 2 |
| Electronics | 9 |
| Geophysics | 6 |
| Radio | 1 |
| Space | 1 |
| Technology | 3 |