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1·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。

2·The shielded rectangular cross section slab line with cylindrical inner conductors is of great importance to microwave engineering and design.

由多根圆柱内导体和矩形外导体所组成的屏蔽矩形板线是电磁工程中一类重要的传输线。