Map projection in cartography is a way to present a two-dimensional curved surface on a plane, such as a normal map. Figure 2 shows a Traverse Mercator projection.

绘图法中的地图投影方法可以在平面中表示一个两维的曲面，例如一个标准地图。

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High frequency, the signal transmission cable surface (skin effect), the smaller size of the Traverse greater loss.

高频时，信号在导线表面传输(趋肤效应)，尺寸越小的导线产生的损耗越大。

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