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| 监控信号; 领示信号; 监视信号 | |||
| 导频信号; 监督信号; 检验信号; 表示信号; 检查信号; 检査信号; 控制信号 | |||
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контрольный сигнал : 6 phrases in 3 subjects |
| Electronics | 2 |
| General | 2 |
| Technology | 2 |
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