 |
| |||
| 收音机扼流圈 | |||
| radio choke: 7 phrases in 6 subjects |
| Air defense | 1 |
| Oil / petroleum | 1 |
| Radio | 1 |
| Space | 1 |
| Technology | 2 |
| Telecommunications | 1 |
|
| |||
| 收音机扼流圈 | |||
| radio choke: 7 phrases in 6 subjects |
| Air defense | 1 |
| Oil / petroleum | 1 |
| Radio | 1 |
| Space | 1 |
| Technology | 2 |
| Telecommunications | 1 |