 |
| |||
| double-amplitude | |||
| double amplitude | |||
| peak-to-peak amplitude | |||
| |||
| double amplitude | |||
| 倍幅: 11 phrases in 6 subjects |
| Air defense | 1 |
| Electronics | 2 |
| General | 1 |
| Geophysics | 1 |
| Radio | 1 |
| Technology | 5 |
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