A.E經(jīng)差、N緯差 B.W經(jīng)差、S緯差 C.E經(jīng)差、S緯差 D.W經(jīng)差、N緯差
A.113°37'.6W B.113°37'.6E C.101°12'.2E D.101°12'.2W
A.041°15'.2E B.041°15'.2W C.110°20'.6E D.110°20'.6W