An unbalanced line is generally a single-conductor shielded cable with the center conductor carrying the signal and the shield at ground potential.

对于非平衡式信号线来说，就是一根被屏蔽了的信号线，这个中心信号线传输信号，且相对于地电势。

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Since the inner diameter of the Teflon and PE tubes is much larger than the outer diameter of the metal conductor, the metal only touches the tubes in a single line.

既然铁氟龙以及聚乙烯之导管内径比金属导体的外径大出许多，因此金属导体仅接触到单一的导管，导体几乎受到空气完美隔离。

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Since the inner diameter of the Teflon and PE tubes is much larger than the outer diameter of the metal conductor, the metal only touches the tubes in a single line.

既然铁氟龙以及聚乙烯之导管内径比金属导体的外径大出许多，因此金属导体仅接触到单一的导管，导体几乎受到空气完美隔离。

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