This axis has no crossing axis.
该轴没有交叉轴。
Sphenoid projection, a projection has more projective centers which are the crossing points intersected by minor axis of the ellipsoid and the parallel planes.
楔形投影是以过该点纬线所在平面与椭球短轴交点为投影中心作中心投影。
Place the crossing line over the green axis.
通过线的绿色轴线上。
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