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частота сканирования | |||
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строчная частота; частота строк |
行频: 47 phrases in 12 subjects |
Antennas and waveguides | 1 |
Aviation | 5 |
Business | 1 |
Electronics | 2 |
General | 20 |
Military | 1 |
Nautical | 1 |
Oil processing plants | 1 |
Radio | 1 |
Sports | 1 |
Technology | 12 |
Telecommunications | 1 |