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single-pole, double-throw (о переключателе) | |||
single-pole double-throw | |||
single-pole-double-throw (рубильник) |
однополюсный на два направления: 5 phrases in 5 subjects |
Communications | 1 |
Energy industry | 1 |
Measuring instruments | 1 |
Sakhalin | 1 |
Technology | 1 |