名词
中文翻译：双线
同义词：
['two wires', 'two conductors例句：1. The electrical system is designed with two-wires in each phase.（这个电气系统设计为每个相都有两条线。）']
例句：
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1. The electrical system is designed with two-wires in each phase.
这个电气系统设计为每个相都有两条线。
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2.The two-wires are connected to the mains.
这两条线连接到主电源。
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3. The two-wires are used for transmitting signals.
这两条线用于传输信号。