| |||
medium high frequency | |||
medium-high frequency | |||
| |||
intermediate frequency | |||
| |||
medium-high frequency | |||
| |||
medium-high frequency | |||
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medium-high frequency |
中 高 频 : 44 phrases in 11 subjects |
Air defense | 6 |
Aviation | 7 |
Earth sciences | 2 |
Electronics | 6 |
General | 6 |
Geophysics | 3 |
Information technology | 1 |
Oil / petroleum | 2 |
Project management | 1 |
Space | 3 |
Technology | 7 |