| |||
| 频率编码调制 | |||
|
frequency code modulation : 9 phrases in 4 subjects |
| Electronics | 5 |
| Geophysics | 1 |
| Technology | 1 |
| Telecommunications | 2 |
| |||
| 频率编码调制 | |||
|
frequency code modulation : 9 phrases in 4 subjects |
| Electronics | 5 |
| Geophysics | 1 |
| Technology | 1 |
| Telecommunications | 2 |