What are the relations between the earth surface, the geoid, and the Earth spherop?
高斯投影的变形特征?为常常被用作大比例尺普通地的地投影?
What are the relations between the earth surface, the geoid, and the Earth spherop?
高斯投影的变形特征?为常常被用作大比例尺普通地的地投影?
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