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| 由大地回流的电路; 单向电路; 单一电路; 简化电路 | |||
| 大地回路; 单线电路; 地回电路; 接地返回线路; 单工线路; 接地回路接地返回线路 | |||
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цепь с возвратом через землю : 1 phrase in 1 subject |
| Technology | 1 |
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