| |||
| 调幅一调频 | |||
| |||
| 调幅/调频 | |||
|
amplitude modulation/ frequency modulation : 27 phrases in 8 subjects |
| Air defense | 3 |
| Aviation | 1 |
| Earth sciences | 3 |
| Electronics | 10 |
| Geophysics | 6 |
| Radio | 1 |
| Space | 1 |
| Technology | 2 |
| |||
| 调幅一调频 | |||
| |||
| 调幅/调频 | |||
|
amplitude modulation/ frequency modulation : 27 phrases in 8 subjects |
| Air defense | 3 |
| Aviation | 1 |
| Earth sciences | 3 |
| Electronics | 10 |
| Geophysics | 6 |
| Radio | 1 |
| Space | 1 |
| Technology | 2 |