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| low frequency transformer | |||
| a.f. transformer (audio-frequency transformer); audio-frequency transformer (a.f. transformer) | |||
| low-frequency transformer | |||
| audio-frequency transformer | |||
| трансформатор низкой частоты: 3 phrases in 3 subjects |
| Electronics | 1 |
| Mass media | 1 |
| Technology | 1 |