| |||
| 频率分割调制 | |||
| 频分调制 | |||
| 分频调制 | |||
| |||
| 频率划分调制 | |||
|
frequency division modulation : 9 phrases in 5 subjects |
| Air defense | 1 |
| Electronics | 5 |
| Oil / petroleum | 1 |
| Space | 1 |
| Telecommunications | 1 |
| |||
| 频率分割调制 | |||
| 频分调制 | |||
| 分频调制 | |||
| |||
| 频率划分调制 | |||
|
frequency division modulation : 9 phrases in 5 subjects |
| Air defense | 1 |
| Electronics | 5 |
| Oil / petroleum | 1 |
| Space | 1 |
| Telecommunications | 1 |