| |||
| 调频频偏 | |||
|
frequency modulation deviation : 3 phrases in 3 subjects |
| Electronics | 1 |
| Piezoelectric crystals | 1 |
| Telecommunications | 1 |
| |||
| 调频频偏 | |||
|
frequency modulation deviation : 3 phrases in 3 subjects |
| Electronics | 1 |
| Piezoelectric crystals | 1 |
| Telecommunications | 1 |