A.J48D012012 B.J48E012013 C.J48D012014 D.J48D013013
A.經(jīng)差15′、緯差10′ B.經(jīng)差1°30′、緯差1° C.經(jīng)差7.5′、緯差5′ D.經(jīng)差3′45″、緯差2.5′