对于这种系列图幅，通常是设计一种标准图廓。

For such a series it is usual to design a standard margin.

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页面图廓，通常不是经纬网线，就是直角坐标网线。

Sheet edges are normally either graduate lines or grid lines.

youdao

页面图廓，通常不是经纬网线，就是直角坐标网线。

Sheet edges are normally either graduate lines or grid lines.

youdao