polar stereographic projection极射赤平役影;极正射投影;极方位立体投影
the polar Stereographic prOjection极球面投影
polar gnomonic projection极地球心投影图
polar map projection极投影
polar r projection极投影
polar equivalent projection极等积投影
Polar-projection moment极坐标投影矩
polar of projection body射影体的极