polyconic map projection多圆椎地图投影;多圆锥投影
rectangular polyconic map projection直角多圆锥投影
polyconic conforming projection正形多圆锥投影
modified polyconic map projection修正多圆锥投影
polyconic c projection多圆锥投影
conformal polyconic projection正形多圆锥投影
rectangular polyconic projection正交多圆锥投影;正方多圆锥投影
ordinary y polyconic projection普通多圆锥投影
modifled polyconic projection改良多圆锥投影
modification polyconic projection改良多圆锥投影
N（名词） a type of conic projection in which the parallels are not concentric and all meridians except the central one are curved lines. It is neither equal-area nor conformal, but is suitable for maps of areas or countries of great longitudinal extent 多圆锥投影