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| преобразование треугольник-звезда | |||
| схема соединения треугольник – звезда; схема соединения "треугольник звезда" | |||
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delta -Y : 22 phrases in 4 subjects |
| Electrical engineering | 9 |
| Electronics | 6 |
| Energy system | 2 |
| Technology | 5 |
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