地图球面投影
Spherical projection of map
以上为机器翻译结果,长、整句建议使用 人工翻译 。
在地图等积投影中,椭球面梯形面积的正、反算方法和精度是关键。
In order to satisfy the requirement of high precision in map equiareal projection, the precise forward and inversion formulas of ellipsoid trapezoid area are studied out according to the basic theory.
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