conic projection 或 conical projection

conic-projection的词性：
n.（名词）

1. A method of projecting maps of parts of the earth's spherical surface on a surrounding cone, which is then flattened to a plane surface having concentric circles as parallels of latitude and radiating lines from the apex as meridians.
圆锥投影：一种绘图方法，将一空心圆锥置于球体上，当圆锥展平时切线就是制图地区的中央纬线，所有的纬线都是诸同心圆的弧；而经线是从圆锥顶点向标准纬线各部分所绘的直线